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5765-F62 IBM High Availability Cluster Multi-Processing (HACMP) for AIX 5L, Version 5.2.0
5765-F62 IBM High Availability Cluster Multi-Processing (HACMP) for AIX 5L, Version 5.3.0

c7

Revised:  May 24, 2005.



Revised:  July 13, 2005.



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5765-F625.02.02004/06/222004/07/16
5765-F625.03.02005/07/122005/08/12

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5765-F625.02.02004/06/222004/07/16
2006/04/302007/09/30 -



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Better protect your critical business applications from failures with
the world-spanning capabilities of IBM High Availability Cluster
Multi-Processing for AIX 5L, V5.2 (HACMP V5.2).

For over a decade, IBM HACMP has provided reliable high availability
services, monitoring customers' pSeries servers and dependably performing
application failover to backup servers. The HACMP/XD feature provides
real-time data mirroring and disaster recovery for critical business
needs. The HACMP Smart Assist for WebSphere feature brings additional
high availability to end-user application environments.

Most application outages are caused not by hardware failures but by
network, application, or external causes. For over a decade, IBM HACMP
has provided reliable high availability services, monitoring customers'
IBM eServer pSeries servers and network connections and dependably
performing application failover to backup servers.

The optional HACMP Extended Distance (HACMP/XD) feature provides real-
time data mirroring and disaster recovery for critical business needs,
enabling you to protect business-critical applications and provide 24 x 7
service to your customers and staff. HACMP/XD includes three distinct
data mirroring and disaster recovery solutions:


  • Geographic Logical Volume Manager (GLVM)

  • Metro Mirroring (formerly known as Peer-to-Peer Remote Copy) for IBM
    ESS, and SVC

  • High Availability Geographic Cluster (HAGEO) IP-based mirroring

The HACMP Smart Assist feature brings additional high availability
setup assistance for database application environments. Three
applications help you easily integrate your DB2, Oracle, and WebSphere
applications into an HACMP cluster. Smart Assist expands HACMP auto-
discovery features to simplify and streamline the configuration process.


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HACMP V5.2 offers streamlined, simplified, and automated features to
better support your on demand business.

HACMP V5.2: Simpler. Faster. Goes the distance.

Simpler to configure and more flexible to maintain:

HACMP V5.3: Simpler. Faster. Goes the distance.

Simpler:


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  • Two-node configuration wizard for common installations

  • Cluster Test Tool

  • Enhanced security mechanisms

  • Web-based configuration and control facility for cluster management

  • Optional feature HACMP Smart Assist for WebSphere

    Faster event processing to speed application recovery:


    • Improved policy-based cluster manager provides streamlined resource
      movement and faster failover.

    • Up to 40% improvement in basic cluster failover time helps minimize
      application downtime.

    • Ability to define resource group interdependencies facilitates
      efficient failovers.

    Goes the distance to provide availability across multiple
    sites:


    • AIX Logical Volume Manager (LVM) split mirroring for disaster
      recovery in SAN environments

    • Optional HACMP Extended Distance (HACMP/XD) feature that supports
      both
      IBM TotalStorage Enterprise Storage Server (ESS)
      and Storage Area Network (SAN) Volume Controller
      volumes that use
      Peer-to-Peer Remote Copy (PPRC), and two technologies for
      unlimited-distance IP-based
      geographic clustering and data mirroring options to
      enhance disaster recovery

    • Support for Enterprise Remote Copy Management Facility (eRCMF)
      with HACMP/XD for Enterprise Storage Subsystem (ESS) PPRC expands
      HACMP/XD's capabilities.

    For information regarding HACMP V5, refer to the PDF document at:


    http://www.ibm.com/servers/eserver/clusters/
    software/order_guide.pdf


  • New Smart Assists simplify configuration for use with DB2 and Oracle.

  • Enhanced support for complex multitiered applications brings ease-of-
    use to remote clusters.

  • Clusters can be configured using simple ASCII files.

  • HACMP automatically detects and corrects problems with the cluster
    configuration.

  • HACMP now accommodates OEM volumes and file systems

    Faster:


    • Applications stay up longer and recover faster.

    • Application resources are processed in parallel at primary and
      secondary sites.

    Goes the distance:


    • Easier, more flexible disaster recovery configuration and management

    • Simpler site management policies for the startup, fallover, and
      fallback behavior

    • Ability to "mix and match" application management policies within and
      between sites

    • Dynamic reconfiguration (DARE) in all HACMP/XD configurations


    24a124,125

    HACMP is the solution for the 79% of application downtime that is
    not caused by processor failures.


    27,131c128,132
    operational 7 days per week, 24 hours per day. An HACMP solution
    provides the means to recover from any unplanned server hardware and
    application failures
    , and also gives you the means to take down an
    individual server (node) for planned maintenance and upgrades
    without having to take down the entire cluster.
    operational 7 days per week, 24 hours per day. An HACMP solution helps
    you avoid downtime, enables prompt recovery from any hardware, network
    and application failures, and also gives you the means to take down an
    individual server (node) for planned maintenance and upgrades without
    having to take down the entire cluster.

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  • Finance/Banking: Almost 100% require high availability; federal

  • Finance/Banking: Nearly 100% require high availability; federal

    61,164c162,165
    separate sites to aid in disaster recovery protection. This applies to
    businesses of any size, with multiple sites or regional operations, or
    wherever decentralization of data is desired.

    HACMP is an attractive and affordable high availability solution for
    separate sites to aid in disaster recovery. This applies to businesses
    of any size, with multiple sites or regional operations, or wherever
    decentralization of data is desired.

    HACMP is an attractive, affordable high availability solution for


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    fundamental buying criterion for business-critical and e-business
    fundamental buying criterion for business-critical and on demand

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    In addition to providing high availability, HACMP 5.2.0 can also be

    In addition to providing high availability, HACMP 5.3.0 can also be


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    failover and recovery/restart of the HACMP V5 configured machine, offer s
    failover and recovery/restart of the HACMP 5.3 configured machine, offers

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    environments. The Concurrent Resource Manager function of HACMP 5.2.0
    environments. The Concurrent Resource Manager function of HACMP 5.3.0

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    Positioning of HACMP relative to other cluster servers:

    Positioning HACMP and other cluster servers:


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  • HACMP is cluster technology proven over a decade of service.

  • Rich skills base has developed in the industry for implementation and
    support of HACMP.

  • HACMP is a cluster technology proven over a decade of service.

  • A rich skills base has been developed in the industry for
    implementation and support of HACMP.

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  • HACMP is fully aligned with IBM's on demand business strategy to

  • HACMP is fully aligned with IBM's On Demand Business strategy to

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    HACMP 5.2 offers robust high availability and disaster recovery, with
    streamlined configuration, improved ease-of-use, reduced cost of
    administration, greater flexibility of event handling, faster failover,
    and a new Web-based configuration and control facility for pSeries
    customers with mission-critical applications.


    • Streamlined cluster configuration:

      • Two-node configuration wizard
      • Additional security features

    • Reduced cost and improved ease of administration:

      • Cluster Test Tool
      • Show "Cluster Applications" Utility

    • Greater flexibility of event handling

      • Internal policy-based cluster resource manager
      • Multiple application monitors
      • Customized control of resource behavior

    • Web-based configuration and control facility

    • AIX LVM split mirroring and ESS eRCMF support

    The optional features HACMP/XD Extended Distance and HACMP Smart
    Assist for WebSphere provide complete high availability
    disaster recovery solutions for your business.

    HACMP, which offers robust high availability and disaster recovery for
    pSeries and iSeries customers with mission-critical applications, now
    supports AIX 5L V5.3.


    • Simplified integration of DB2 and Oracle applications into an HACMP
      cluster

    • Enhanced support for complex multitiered applications

    • Streamlined cluster configuration using simple ASCII files

    • Automatic detection and correction of problems with the cluster
      configuration

    • Accommodations for OEM file systems

    • Parallel processing of application resources

    • Easier, more flexible disaster recovery configuration and management

    • New HACMP/XD Geographic Logical Volume Manager (GLVM) data mirroring

    • HACMP/XD Metro Mirror for IBM ESS, and SVC

    • Ability to "mix-and-match" application management policies within and
      between site configurations .

    The optional features HACMP/XD and HACMP Smart Assist features provide
    complete high availability disaster recovery solutions for
    your business.


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    HACMP for AIX 5L provides the capability to greatly improve
    availability of applications needed to support on demand businesses.
    HACMP 5.2 continues to demonstrate IBM's cluster technology leadership,
    with new features to make the product even simpler, faster, and more
    flexible to integrate into IBM or third-party application environments.
    IBM continues its expansion of features to enhance extended distance
    implementations, including new AIX mirroring support for campus
    configurations.

    HACMP provides base services for cluster membership, system

    HACMP for AIX 5L helps ensure availability of applications needed to
    support your On Demand Business. HACMP 5.3 continues to demonstrate
    IBM's cluster technology leadership, with new features to make the
    product even simpler, faster, and more flexible to integrate into IBM or
    third-party application environments. HACMP "goes the distance" by
    including new AIX 5L geographic mirroring support for remotely located
    cluster configurations.

    HACMP provides base services for cluster node membership, system


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    recovery for up to 32 servers or nodes.  Easy-to-use status and
    monitoring facilities are included.  Scalability provides these
    capabilities across entire clusters and allows customers to define their
    own HACMP events and monitor their applications.  HACMP V5 fully
    supports administration of AIX 5L Enhanced Concurrent Mode, thus
    recovery for applications. HACMP clusters with both nonconcurrent and
    concurrent access can contain up to 32 nodes. A node is an AIX 5L
    operating system image, and it may be a pSeries or iSeries server, an
    RS/6000 server or SP node, or an LPAR of an applicable pSeries system.

    Easy-to-use status and monitoring
    facilities are included. Scalability
    provides these capabilities across entire clusters and allows customers
    to define their own HACMP events and monitor their applications.  HACMP
    V5 fully supports administration of AIX 5L Enhanced Concurrent Mode, thus


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    objective for availability is at the storage level (such as ESS or FAStT)
    objective for availability is at the storage level (such as ESS or SVC),

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    system level (such as with GPFS), at the application level (such as DB2
    or WebSphere), or at the site level (such as to support disaster
    recovery), HACMP has features and options to assist with successful
    integration into your environment. After your cluster is configured, a
    wealth of options ensure that changes are synchronized accurately across
    all systems, and the cluster can be monitored easily with methods
    appropriate to your environment.

    The HACMP/XD (Extended Distance) option provides automated data backup
    and disaster recovery across geographically dispersed sites, enabling you
    to protect business-critical applications and provide 24 x 7 service to
    your customers and staff.

    The HACMP Smart Assist for WebSphere option builds upon existing
    WebSphere availability strategies to deliver even higher levels of
    availability for your WebSphere environment by integrating the power of
    HACMP for AIX 5L for monitoring and recovering from failures of system
    level services and components.  Smart Assist expands HACMP auto-
    discovery features to simplify and streamline the configuration process.

    HACMP is built upon the Reliable Scalable Cluster Technology (RSCT)
    features of AIX 5L to bring greater scalability.  HACMP clusters with
    both nonconcurrent and concurrent access can contain up to 32 nodes. A
    node is an AIX 5L operating system image, and it may be a pSeries or
    RS/6000 server, an RS/6000 SP node, or an LPAR of an applicable pSeries
    system.

    Highlights of Version 5.2.0

    HACMP V5.2 includes the following new or enhanced features:


    • New policy-based cluster manager delivers more responsive
      failover -
      The policy-based cluster manager has been enhanced to
      provide more flexibility moving resources as a result of failures. All
      resource movement decisions are made by the cluster manager after
      evaluating resource dependencies. Since all policy decisions are made by
      the cluster manager, no end user script modifications are required to
      manage or respond to failures of any supported resource.

    • Two-node configuration wizard - The two-node
      configuration wizard simplifies the process for configuring an HACMP
      cluster that includes two nodes and associated volume groups, networks,
      service IP labels and applications. The wizard guides you through the
      configuration process and provides on-line user assistance to help you
      enter correct information for the five entry fields. The application is
      designed for users  with little knowledge of HACMP who want to quickly
      set up a basic two-node cluster with one nonconcurrent resource group,
      one application server, volume groups, and one service label.

    • Test Tool for easier verification of cluster behavior -
      You can use the Cluster Test Tool to test your new or changed HACMP
      configuration to evaluate how a cluster behaves under a set of specified
      circumstances, such as when a node or network becomes inaccessible, a
      resource group moves from one node to another, and so forth. You can let
      the test run unattended and evaluate results at a later time.

    • Improved security - In addition to connection
      authentication to protect HACMP communications between cluster nodes,
      HACMP now provides additional security for HACMP messages sent between
      nodes. Message authentication ensures the origination and integrity of a
      message.  Message encryption changes the appearance of the data as it is
      transmitted and returns it to its original form when received by a node
      that authenticates the message.  Supports MD5 and DES, Triple DES and
      AES.

    • Simplified Resource Groups definition methods - In HACMP
      5.2, all resource groups are configured in the same way as you configured
      custom resource groups in the previous release. All groups are referred
      to simply as resource groups.

    • More flexible policy for resource group startup - This
      policy ensures that during a node or cluster startup, only one resource
      group is brought on-line on a node (node distribution), or on a node per
      network (network distribution). The start order for your resources can
      now be explicitly set with a more straight forward method.

    • Simpler configuration of complex clusters - Configuring a
      resource group dependency allows for easier configuration and control for
      clusters with multi-tier applications where one application depends on
      the successful startup of another application, and both applications are
      required to be kept highly available with HACMP. Dependencies that you
      configure are explicitly specified using the SMIT interface, and are
      established cluster-wide.

    • HACMP File Collections - Provides an easy way to request
      that a list of files be kept in sync across the cluster. Using HACMP
      File Collections, you no longer have to manually copy an updated file to
      every cluster node, verify that the file is properly copied, and confirm
      that each node has the same version of it.  HACMP also detects when a
      file in a file collection is deleted or if the file size is changed to
      zero, and logs a message to inform the administrator.  Two predefined
      HACMP file collections are installed by default, to control system files
      and HACMP files.

    • Automatic cluster configuration checking by the cluster
      verification utility. -
      By default, HACMP 5.2 runs the clverify
      utility automatically on the node that is first in alphabetical order,
      once every 24 hours at midnight. HACMP notifies the cluster
      administrator if problems with the cluster configuration are detected.
       This action will reduce the risk that a change to the cluster may
      negatively impact a cluster event at a later time.

    • Web-Based cluster management - Now you can configure,
      monitor and manage your cluster from a web browser. HACMP 5.2 includes a
      Web-enabled user interface (WebSMIT) that provides consolidated access to
      the HACMP SMIT functions for configuration and management, a new
      interactive cluster status display and links to the HACMP
      documentation. The WebSMIT interface is similar to the ASCII SMIT
      interface so you do not need to learn a new user interface or
      terminology. The Web-based Cluster Utilities use a Web browser and can
      therefore be accessed from any platform.

    • Show "Cluster Applications" utility - This utility
      displays your cluster configuration from an application point of view.
      Cluster applications are listed first, followed by the topology
      components (nodes, disks and networks) which service the application.
      There are ASCII and Web (CGI) versions - the Web version lets you expand
      and collapse sections of the display and the state of the cluster is
      indicated with different color keys (for example, green indicates on-
      line).

    • Resetting HACMP tunables values - You can change the
      settings for a list of tunable values that were changed during the
      cluster maintenance and reset them to their default settings, or
      installation-time cluster settings. Resetting the tunable values to
      their defaults helps to troubleshoot cluster performance and assists
      third-party administrators (such as IBM support personnel) in case they
      take over the administration of a cluster.

    • Cluster-wide password change for users - Users can now
      change their password across cluster nodes when authorized to do so. A
      new Cluster Password utility links to the AIX password utility to support
      this change. System administrators enable the Cluster Password utility
      on all nodes in a cluster or nodes in specified resource groups, then
      give specified users permission to change their password on particular
      nodes.

    • Online Planning Worksheets - The Online Planning
      Worksheets application now lets you view the cluster definition for a
      local, active HACMP cluster, and create a worksheets file from a local,
      active cluster running HACMP 5.2 or greater.  You may also save a
      cluster definition in a worksheets file from SMIT or from Online Planning
      Worksheets.

    • Recovering Resource Groups on node startup - In HACMP
      5.2, an attempt is made to bring on-line the resource groups that are
      currently in the ERROR state, an action that required a manual
      intervention in prior releases. This further increases the chances of
      bringing the applications back on-line. When a node starts up, if a
      resource group is in the ERROR state on any node in the cluster, this
      node attempts to acquire the resource group. Note that the node must be
      included in the nodelist for the resource group.

    • Cluster verification with auto-corrective actions - You
      can now authorize a corrective action before clverify continues error
      checking, when clverify detects conditions such as inconsistent
      information about the contents volume groups across nodes, or missing
      cluster information in system files such as /etc/hosts or /etc/services.

    • Resource Monitoring and Control (RMC) subsystem replaces RSCT
      Event Management -
      HACMP 5.2 interfaces with the RSCT Resource
      Monitoring and Control (RMC) subsystem instead of the Event Management
      subsystem for instances of Dynamic Node Priority, Application Monitoring,
      and User Defined Events.

    • Multiple application monitors - You can now configure
      multiple application monitors and associate them with one or more
      application servers. You can assign each monitor a unique name in SMIT.
      Prior to HACMP 5.2, for each application that is kept highly available,
      you could configure only one of the two types of monitors: a monitor to
      check whether a specific process is terminated in the cluster, or a
      monitor to check the state of the application by the means of a
      customized script.

    • Application startup monitoring - You can configure
      application monitors to function in the application startup monitoring
      mode. The monitors in this mode monitor the startup of the application
      server start script within the specified stabilization interval.
      Specifying the application startup monitoring mode is strongly
      recommended for applications included in resource groups on which other
      resource group(s) depend.

    • Communications performance enhancements - Versions
      previous to HACMP 5.2 use Remote Procedure Calls (RPC) to pass
      information between the event scripts and cluster utilities of HACMP and
      the Cluster Manager. In HACMP 5.2, a faster and more robust inter-
      process communication (IPC) implementation replaces the use of RPC in the
      Cluster Manager and its external utilities. Cluster events should take
      less time to complete than in previous releases.

    • Cross-Site LVM mirroring - In HACMP 5.2, you can set up
      disks located at two different sites for cross-site LVM mirroring (using
      a Storage Area Network (SAN), for example). Cross-Site LVM mirroring
      replicates data between the disk subsystems at each site for disaster
      recovery.  HACMP 5.2 automatically synchronizes mirrors after a disk or
      node failure and subsequent reintegration. HACMP handles the automatic
      mirror synchronization even if one of the disks is in the PVREMOVED or
      PVMISSING state. The automatic synchronization is not possible for all
      cases, but you can use C-SPOC to synchronize the data from the surviving
      mirrors to stale mirrors after a disk/site failure and subsequent
      reintegration.

    • Extended Distance support for eRCMF - HACMP/XD for ESS
      PPRC increases data availability for IBM TotalStorage Enterprise Storage
      Server (ESS) volumes that use Peer-to-Peer Remote Copy (PPRC) to copy
      data to a remote site for disaster recovery purposes. With HACMP 5.2,
      you can use the (optional) Enterprise Remote Copy Management Facility
      (eRCMF) with HACMP/XD for ESS PPRC.

    • Optional HACMP/XD Extended Distance feature for ESS/PPRC and
      IP-based mirroring configurations.

      system level (such as with GPFS), at the application level (such as DB2,
      Oracle, or WebSphere), or at the site level (such as to support disaster
      recovery), HACMP has features and options to assist you with successful
      integration into your environment. After your cluster is configured, the
      changes are synchronized accurately across all nodes and the cluster can
      be monitored easily with methods appropriate to your environment.

      The optional HACMP/XD and HACMP Smart Assist features provide
      additional automated data backup, disaster recovery, and database
      environment configuration assistance, to help protect your business, and
      are described in detail below.

      All of the facilities of HACMP are available for and with IBM's
      pSeries Capacity on Demand (CoD), On/Off CoD, and Capacity Backup (CBU)
      offerings. This enables customers to configure clusters that are
      scalable, and to easily expand cluster's CPU and memory capacity as the
      need arises, without having to pay upfront for hardware that is not yet
      used.

      Highlights of Version 5.3

      New features that make HACMP V5.3 simpler:


      • New applications to help you easily integrate database applications
        into an HACMP cluster:

        • Smart Assist for DB2
        • Smart Assist for Oracle
        • New SMIT interface for Smart Assist for WebSphere

      • Automatic verification and synchronization of cluster configuration
        Enhancements to cluster verification enable you to bring a node online
        more quickly and to minimize network downtime. HACMP automatically
        verifies and synchronizes nodes joining active clusters and nodes in
        inactive configurations. HACMP automatically checks for and ensures that
        many parameters set in cluster nodes are the same across the cluster.
        HACMP corrects these inconsistencies upon cluster startup. Verification
        now also detects potential single points-of-failure that were previously
        only discovered via the automatic error notification function.

      • Out-of-the-box support for Veritas(**) volumes and file systems, and
        accommodation of OEM volumes and file systems

        You can configure OEM volume groups and file systems in AIX 5L and use
        HACMP as an IBM high availability solution to manage such volume groups,
        their corresponding file systems, and application servers. In
        particular, HACMP for AIX 5L 5.3 automatically detects volume groups
        created with the Veritas Volume Manager (VxVM) using Veritas Foundation
        Suite V4.0.

      • ASCII-based Cluster Definition File

        Online Planning Worksheets now saves worksheet configuration
        information to an XML file by default. This XML worksheet file can be
        created or modified using the Online Planning Worksheets application, a
        cluster snapshot, manual edit, or SMIT. This makes it possible for you
        to easily configure a new cluster from a previously saved snapshot.

      • Enhanced support for complex multitiered applications (resource group
        location dependencies)

        In addition to policies for individual resource groups and
        parent/child dependencies, HACMP 5.3 offers policies to handle cluster-
        wide resource group location dependencies. You easily define these run-
        time policies for selected groups using the user interface so that:


        • Certain resource groups will always be online on the same node
        • Certain resource groups will always be online on different nodes
        • Certain resource groups (with replicated resources) will always be
          online on the same site

      • Cluster Information Program (Clinfo) enhancements

        The Clinfo client API requests now contain version information. This
        provides full version compatibility without the need for clients to
        recompile (as in previous releases).

        New architecture for communication between Clinfo and the Cluster
        Manager improves both performance and usability of HACMP 5.3:


        • Streamlining of SNMP server functions

        • The Cluster Manager daemon now explicitly controls the startup and
          shutdown of dependent software, such as RSCT, and the utility to manage
          enhanced concurrent mode volume groups (gsclvmd).

        • SNMP queries are available all the time, even if no cluster is
          configured, allowing you to view the state of the nodes.

      • Additional cluster verifications

        Verification now performs additional checks that enable you to
        maintain a homogeneous cluster configuration. Some of these checks are
        now done for issues that you previously had to fix manually, or
        inconsistencies that created some maintenance problems. In HACMP 5.3, a
        new set of these checks ensures that your cluster runs smoother and that
        all utilities are in agreement about numerous cluster settings.

      • clhosts file automatically populated

        HACMP now makes it easier for you to properly create the clhosts file
        on cluster nodes. During verification, HACMP 5.3 automatically collects
        all available IP addresses and adds that information into the clhosts
        file on the server node. You can now copy the clhosts file to your
        client nodes as needed by Clinfo and any other utilities.

      • SMS pager capability

        HACMP 5.3 adds new methods of custom pager notification. You can send
        text message notification to any address, including a cell phone. You
        can issue a customized page (numeric or alphanumeric page, or text
        messaging) in response to a cluster event.


      New features that enhance geographic distance capability

      These features increase the capability for distributing the cluster
      over a geographic distance for improved availability and disaster
      recovery:


      • HACMP/XD includes three distinct disaster recovery solutions:

        • Geographic Logical Volume Manager (GLVM) for AIX 5L logical volumes
        • Metro Mirroring (PPRC) for ESS and SVC storage systems
        • High Availability Geographic Cluster for AIX 5L (HAGEO)

      • Increased control of disaster recovery configuration is now available
        under all three HACMP features (except where otherwise noted). Resource
        groups are now "site-aware" -- the Cluster Manager or you can move them
        dynamically as necessary, within or across sites. HACMP 5.3 supports:

        • Parallel processing of primary and secondary instances of HACMP/XD
          resource groups by default
        • Clear site management policies for the startup, fallover, and
          fallback behavior of both instances of any HACMP/XD resource group
        • Dynamic reconfiguration (DARE) in all HACMP/XD configurations
        • Changes to cluster nodes, networks and IP interfaces in both HACMP
          and HACMP/XD clusters without stopping the cluster services
        • Most resource configuration changes - primary and secondary instances
          - - according to the resource group's policy
        • Consolidation of HACMP cluster verification in HACMP/XD
          configurations.


      Optional HACMP/XD feature for ESS, and SVC Metro
      Mirroring, geographic LVMs, and IP-based mirroring configurations


      54a393,398

    • HACMP/XD Geographic Logical Volume Manager (GLVM) is a new IP-based
      mirroring technology. HACMP/XD GLVM data replication is built upon the
      AIX 5L Logical Volume Manager (LVM), using it to drive replication and
      synchronization of AIX 5L logical volumes. For additional information
      regarding GLVM, refer to Software Announcement 205-085, dated March 15,
      2005.

      56,463c400,406
      and Storage Area Network (SAN)Volume Controller (SVC)
      Peer-to-Peer
      Remote Copy (PPRC), providing automatic failover of disks that are
      configured as PPRC pairs, creating a powerful disaster recovery solution
      for customers on ESS.  HACMP/XD automates the management of PPRC,
      minimizes recovery time after an outage, and monitors your clustered
      environment to ensure mirroring of critical data is maintained at all
      times.
      and SAN Volume Controller (SVC) Metro Mirroring
      (formerly known as Peer-to-Peer Remote Copy "PPRC"), providing automatic
      failover of disks that are configured as PPRC pairs, creating a powerful
      disaster recovery solution for customers on ESS or SVC.
       HACMP/XD automates the management of PPRC, minimizes recovery time after
      an outage, and monitors your clustered environment to ensure mirroring of
      critical data is maintained at all times.

      69,493c412
      application and data.  Data synchronization during production, failover,
      recovery, and restoration is provided.

    • HACMP/XD (Extended Distance) Geographic Logical Volume Manager
      (GLVM) is a
      new, software-based technology for mirroring mission-critical data over
      standard TCP/IP networks. HACMP/XD GLVM, IBM's solution for geographic
      backup and disaster recovery for IBM eServer pSeries servers,
      supports AIX 5L
      logical volumes to help keep your business running.
      HACMP/XD GLVM exploits IP to enable one or two
      copies of an AIX 5L logical
      volume to be located at a remote site separated by
      unlimited distance, thus
      allowing for automated failover to that remote site
      with minimal risk of
      loss of any data.

  • Optional HACMP Smart Assist for WebSphere

    The new HACMP Smart Assist helps you configure HACMP to improve the
    availability of four services associated with WebSphere environments:


    • WebSphere Application Servers
    • WebSphere Application Server Network Deployment (Deployment Manager)
    • DB2
    • Tivoli Directory Server (TDS)
      application and data.

      95c414,435

      HACMP and Smart Assist increase the availability of a WebSphere
      Data synchronization during production, failover, recovery, and
      restoration is provided.

      Optional HACMP Smart Assist feature

      HACMP 5.3 offers three HACMP Smart
      Assist applications to help you easily
      integrate these applications into an HACMP cluster:


      • Smart Assist for DB2 extends an existing HACMP configuration to
        include monitoring and recovery support for DB2 Universal Database (UDB)
        Enterprise Server Edition.

      • Smart Assist for Oracle provides assistance for installing Oracle
        Application Server 10g (9.0.4) (AS10g) Cold Failover Cluster (CFC)
        solution on the AIX 5L operating system.

      • Smart Assist for WebSphere has been updated and improved for HACMP
        5.3. It extends an existing HACMP configuration to include monitoring and
        recovery support for various WebSphere components, including WebSphere
        Application Servers and WebSphere Application Server Network Deployment
        (Deployment Manager). Smart Assist for WebSphere now has a SMIT user
        interface with options to quickly configure different types of typical
        cluster configurations.

      HACMP and Smart Assist increase the availability of a database


      97,498c437,438

      • Monitoring the Deployment Manager and automatically restarting it on

        • Monitoring the Deployment Manager and automatically restarting it on

          00c440

        • Monitoring critical services (such as a TDS server) and automatically
        • Monitoring critical services (such as a TDS server) and automatically

          02c442

        • Ensuring that all necessary system resources (for example, storage
        • Ensuring that all necessary system resources (for example, storage

          04c444
          servers in support of application migration.
          servers in support of application migration

          06,507c446

        Accessibility by People with Disabilities

        Accessibility by people with disabilities


        13,517c452,456

        HACMP V5.2 is capable as of July 16, 2004, when used in accordance
        with IBM's associated documentation, of satisfying the applicable
        requirements of Section 508 of the Rehabilitation Act, provided that any
        assistive technology used with the product properly interoperates with
        it.

        HACMP V5.3 is
        capable as of August 12, 2005, when used in accordance with IBM's
        associated documentation, of satisfying the applicable requirements of
        Section 508 of the Rehabilitation Act, provided that any assistive
        technology used with the product properly interoperates with it.


        42,547c481,487

        The term "high availability" describes a computing configuration that
        recovers from failures and provides a better level of protection against
        system downtime than standard hardware and software alone.

        HACMP V5.2 is a software product that executes on each node in a
        loosely coupled cluster. It provides application availability by
        detecting and reacting to failures of systems, processors, adapters,

        The term "high availability" describes a set of software functions and
        a computing configuration that recovers from failures and provides a
        better level of protection against system downtime than standard hardware
        and software alone.

        HACMP V5 is a high availability software product that runs on each
        node in a loosely coupled cluster. It provides application availability
        by detecting and reacting to failures of systems, processors, adapters,


        56,558c496,497
        resource types. However, HACMP relies on the application to provide any
        failure recovery transparency or failover transparency to external users
        and client machines.
        resource types. However, HACMP relies on the application to make any
        failure or recovery transparent to external users and client machines.

        63c502

        HACMP 5.2.0 builds on IBM's position as a leader in high-availability

        HACMP V5 builds on IBM's position as a leader in high-availability


        74,576c513,515
        is an AIX operating system image running an instance of the HACMP cluster
        manager. It may be a pSeries or RS/6000 server, an RS/6000 SP node, or
        an LPAR of an applicable pSeries system.)
        is an AIX 5L operating system image running an instance of the HACMP
        cluster manager. It may be a pSeries or RS/6000 server, an RS/6000 SP
        node, or an LPAR of an applicable pSeries system.)

        78,589c517,528
        HACMP V4 HAS, ES, CRM, and ESCRM features. This simplification provides
        all customers access to the benefits and power of HACMP.

        HACMP V5.2 provides services for cluster membership, system
        management, configuration integrity and control, failover, and recovery
        for up to 32 nodes. It takes advantage of AIX's Reliable Scalable
        Cluster Technology (RSCT) to monitor nodes, networks and adapters.
        Easy-to-use cluster status displays are included. HACMP allows customers
        to define their own cluster events and monitor their applications. HACMP
        V5.2 fully supports administration of AIX 5L Enhanced Concurrent Mode,
        providing concurrent shared-access management for all supported disk
        subsystems. Concurrent access is provided at the raw logical volume
        level.
        HACMP V4 HAS, ES, CRM, and ESCRM (Enhanced Concurrent Mode) features.
        This simplification provides all customers access to the benefits and
        power of HACMP.

        HACMP V5 provides services for cluster membership, system management,
        configuration integrity and control, failover, and recovery for up to 32
        nodes. It takes advantage of AIX 5L's Reliable Scalable Cluster
        Technology (RSCT) to monitor nodes, networks and adapters. Easy-to-use
        cluster status displays are included. HACMP allows customers to define
        their own cluster events and monitor their applications. HACMP V5 fully
        supports administration of AIX 5L Enhanced Concurrent Mode, providing
        concurrent shared-access management for all supported disk subsystems.
        Concurrent access is provided at the raw logical volume level.


        91,612c530,533
        disaster recovery across geographically-dispersed clusters,
        protecting business-critical
        applications against disasters that affect an
        entire site.
        The HACMP/XD product provides several high availability technologies that
        extend the business-critical reliability function provided by HACMP V5 to
        support sites that are geographically distant from each other.
        Previously,
        HACMP/XD included ESS Peer-to-Peer Remote Copy (PPRC) and
        Enterprise Remote Copy Management Facility (eRCMF),
        as well as IP-based mirroring ("HAGEO").
        PPRC is now supported for both ESS and SVC storage systems.
        In addition,
        HACMP/XD Geographic Logical Volume Manager (GLVM) is a new IP-based
        mirroring technology.
        HACMP/XD GLVM data replication is built upon AIX 5L's Logical Volume
        Manager (LVM), using it to drive replication and synchronization of AIX
        logical volumes.
        HACMP/XD takes the business-critical function provided by HACMP V5 and
        extends it to support copies of logical volumes that are
        geographically distant from each other.

        The new HACMP Smart Assist for WebSphere feature builds upon existing
        disaster recovery across geographically-dispersed clusters, protecting
        business-critical applications against disasters that affect an entire
        site.

        The HACMP Smart Assist features builds upon existing DB2, Oracle, and


        15c536,600
        components, reducing application downtime.
        components, reducing database application downtime. These Smart Assists
        enable system administrators to easily integrate HACMP in their
        applications' environment and quickly configure mutual takeover clusters
        or other cluster configurations that will support WebSphere applications,
        or DB2 or Oracle database instances.

        Highlights of HACMP V5.3


        • New features that enhance ease of use

          • Cluster Verification has more checks and more automatic corrections
          • Cluster Information Program (Clinfo) enhancements: No need to
            recompile clients
          • SMS pager capability for text or cell phone notifications
          • Smart Assist for DB2 extends an existing HACMP configuration to
            include monitoring and recovery support for DB2 Universal Database (UDB)
            Enterprise Server Edition.
          • Smart Assist for Oracle provides assistance to those involved with
            the installation of Oracle Application Server 10g (9.0.4) (AS10g) Cold
            Failover Cluster (CFC) solution on IBM AIX 5L V5.2 and V5.3 operating
            system.
          • Smart Assist for WebSphere updated and improved for HACMP 5.3.
          • Online Planning Worksheets cluster definition saved in XML format for
            easy edits. Cluster snapshot can also be saved to this format.
          • Automatic accommodation of volume groups and file systems created
            with the Veritas Volume Manager (VxVM) and VxFS using Veritas Foundation
            Suite V4.0.

        • New Features that enhance performance and security

          • You can configure cluster-wide resource group location dependencies
            between resource groups. You can keep specified resource groups online
            on the same node, at the same site, or on different nodes.
          • You can configure a distribution preference for the IP service
            aliases. This enables the placement of IP labels on the same interface
            as the persistent IP label, or on other interfaces. (This function
            enables easier configuration for networks firewall requirements).
          • New architecture for communication between Clinfo and the Cluster
            Manager improves both performance and usability.
          • Improved WebSMIT Security.

        • New Features that Enhance Geographic Distance Capability

          • Greater control of resource groups with replicated resources
            (resources replicated across sites using HACMP/XD for GLVM, HAGEO or
            ERCMF PPRC). HACMP automatically manages both primary (active) instances
            of the resources and the secondary (backup) instances. You have greater
            control of site management policies and can move resource groups with
            replicated resources across sites.
          • HACMP Extended Distance (HACMP/XD) support for AIX 5L geographic LVMs

        • Other changes or enhancements

          • The Cluster Manager starts at boot time
          • Mapping of Cascading, Rotating and Concurrent Resource Groups
          • All resources defined to HACMP must have unique names
          • Network-based distribution policy replaced by node-based distribution
          • The clRGinfo utility displays information about secondary instances
            of Resource Groups
          • Site-specific Priority Override Location (POL) for resource groups
          • Customizing inter-site resource group recovery
          • Online Planning Worksheets application can be run from the HACMP
            installation CD-ROM


        Product technical information


        17c602

        An HACMP cluster is made up of:

        An HACMP cluster is made up of


        21,623c606,609

      • Logical resources, such as applications, service IP addresses and
        mounted file systems, that can be instantiated on any one of an
        equivalent set of physical resources. For example.

      • Logical resources, such as applications (start and stop scripts),
        service IP addresses, and mounted file systems, that can be activated on
        any one of an equivalent set of physical resources or cluster nodes. For
        example,

        30,632c616,618

      • Statements of the dependencies of an application, called resource
        groups. These are lists of the logical resources that must be all
        available on a node for an application to run there.

      • Resource groups - collections of logical resources that are related
        to an application and must be all available on a node for an application
        to run there.

        39c625

        HACMP V5.2 defines policies for resource groups in terms of three

        HACMP V5 defines policies for resource groups in terms of three


        42c628,630

      • The node that initially takes the resource group The choices are:

      • On which node(s) the resource group containing an application will
        get started. This is known as a startup policy for the resource group.
        The choices are:

        47c635
      • Distribution to avoid congestion on nodes or networks
      • Online Using Distribution (to avoid congestion on nodes)

        49,650c637,638

      • What happens when the current resource group owner fails The choices
        are:

      • On which node the application will become activated when the current
        resource group owner node fails. The choices are:

        52,653c640,641
      • failover to next highest priority node
      • Dynamically select least loaded surviving node
      • Failover to next highest priority node
      • Failover by dynamically selecting the least loaded surviving node

        56,657c644,645

      • What happens when a failed resource group owner comes back on line
        The choices are:

      • On which node the application will become activated when a failed
        resource group owner comes back online. The choices are:

        63,669c651,654

        In the prior HACMP release, this set of policies were selectable for
        Custom resource groups. On migration to the HACMP V5.2
        release, all traditional resource group policies are automatically
        converted to this paradigm. A resource group can be configured to behave
        exactly like predefined cascading, rotating, or concurrent resource group
        in the prior releases - including Cascading Without failover (CWOF) or
        Inactive Takeover - by selecting the appropriate policies.

        A resource group with an application can be configured to behave
        exactly as the system administrator managing the application would like.
        To achieve this, the appropriate resource group policies are selected,
        along with other customizable attributes.


        73c658
        custom resource groups can be configured to be brought back online on
        resource groups can be configured to be brought back online on

        88,703c673,700

      • Hot Standby: In this configuration, all resource groups
        are Online on Home Node Only with a single node having the
        highest priority for them all. The resource groups are also
        failover to Next Highest Priority Node so that if the owning
        node fails, the standby node takes over the resources. And, the resource
        groups are to Higher Priority Node so that when the failed
        node rejoins the cluster, the resources are returned to the original
        owning node. That is, one node is normally idle, waiting to recover
        should the other fail.

      • Rotating Standby: This configuration is identical to a Hot
        Standby, except that the resource groups are configured to Never
        fall back
        . So, when the failed node rejoins the cluster, the
        resources are not returned to the node until the standby node fails.

      • Mutual Takeover: In this configuration, the resource
        groups are configured for Hot Standby, but divided among the
        nodes; some are defined as owned by each node. If either node fails, the

      • Hot Standby cluster configuration: In this configuration,
        all resource groups are Online on Home Node Only with a single
        node having the highest priority for them all. The resource groups are
        also failover to Next Highest Priority Node so that if the
        owning node fails, the standby node takes over the resources. And, the
        resource groups are to Higher Priority Node so that when the
        failed node rejoins the cluster, the resources are returned to the
        original owning node. That is, one node is normally idle, waiting to
        recover should the other fail.

      • Rotating Standby cluster configuration: This configuration
        is identical to a Hot Standby, except that the resource groups are
        configured to Never fall back. So, when the failed node
        rejoins the cluster, the resources are not returned to the node until the
        standby node fails.

      • Mutual Takeover cluster configuration: In this
        configuration, the resource groups are configured for Hot
        Standby
        , but divided among the nodes; some are defined as owned by
        each node. If either node fails, the other node takes over all of the
        resources. When the failed node rejoins the cluster, the resources are
        returned to the original owning node. That is, each node backs up the
        other.

      • Concurrent Access cluster configuration: In this
        configuration, two nodes are active simultaneously, sharing the same
        physical disk resources. The resource groups that contain the disks are
        configured to come online on All Available Nodes. Any other
        resource groups are distributed between the two nodes, each owning some
        of them; the resource groups not owned by both nodes are designated as in
        the Hot Standby configuration: if either node fails, the

        06,715d702
        That is, each node backs up the other.

      • Concurrent Access: In this configuration, two nodes are
        active simultaneously, sharing the same physical disk resources. The
        resource groups that contain the disks are configured to come online on
        All Available Nodes. Any other resource groups are divided
        between the two nodes, each owning some of them; the resource groups not
        owned by both nodes are designated as in the Hot Standby
        configuration: if either node fails, the other node takes over all of
        the resources. When the failed node rejoins the cluster, the resources
        are returned to the original owning node.

        25c712

        With this in mind, the cluster designer can chose the number of

        With this in mind, the cluster designer can select the number of


        31,732c718,719
        resource groups. It will also recover any groups that are offline when a
        failed resource rejoins the cluster.
        resource groups. HACMP will also recover any groups that are offline
        when a failed resource rejoins the cluster.

        46c733
        access.
        access. Applications should also have their own locking mechanism.

        77c764

        The Cluster Manager uses the services of AIX's Reliable Scalable

        The Cluster Manager uses the services of AIX 5L's Reliable Scalable


        85,788c772,775

        HACMP can also respond to errors detected by AIX (for example, loss of
        volume group quorum) and application monitors. Application monitors can
        be configured to detect the failure of a particular node or processor and
        to execute a custom monitoring function.

        HACMP can also respond to errors detected by AIX 5L (for example, loss
        of volume group quorum) and application monitors. Application monitors
        can be configured to detect the failure of a particular node or processor
        and to execute a custom monitoring function.


        90,794c777,782
        /.rhosts file. A private daemon replaces the use of the standard rcmd
        function. This daemon is automatically configured to accept requests
        only from other cluster nodes. Requests are validated based on source IP
        address and port, and run at least-privileged level. If extra security
        is needed, the security mechanism can be configured to use VPN tunnels.
        /.rhosts file. HACMPs own Security Communications utility replaces the
        use of the standard rcmd function. This utility is automatically
        configured to accept requests only from other cluster nodes. Requests
        are validated based on source IP address and port, and run at least
        privileged level. If extra security is needed, the security mechanism
        can be configured to use VPN tunnels.

        97c785,786
        Management Interface Tool (SMIT). HACMP provides a "standard
        Management Interface Tool (SMIT), or WebSMIT. This makes the system
        management easier and more accessible. HACMP provides a "standard

        99,805c788,794
        path eases the configuration task by presenting the user with the most
        relevant options, while aiding picklist selections by using as much
        automatic discovery of the underlying configuration as possible. If
        finer control is needed, or there are special requirements, the "extended
        configuration paths" may be used. In addition, SMIT screens are
        generated from prior choices whenever possible, thus enabling each
        successive SMIT screen to contain only the appropriate questions or
        path eases the configuration task by presenting you with the most
        relevant and frequently-used options, while aiding picklist selections by
        using as much automatic discovery of the underlying configuration as
        possible. If finer control is needed, or there are special requirements,
        the "extended configuration paths" may be used. In addition, SMIT
        screens are generated from prior choices whenever possible, thus enabling
        each successive SMIT screen to contain only the appropriate questions or

        11,824d799

      • HAView allows you to monitor HACMP clusters through the
        NetView network management platform. The HAView application monitors the
        clusters using SNMP. HACMP provides a management information base (MIB)
        that contains information about cluster topology and state. HAView
        displays the configuration and state of the clusters and cluster
        components through the NetView graphical user interface. HAView allows
        you to search through a series of nested submaps that reflect the state
        of all the nodes, networks, and network addresses configured in a
        particular cluster.

      • HATivoli allows you to monitor the state of an HACMP
        cluster and its components through your Tivoli Framework enterprise
        management system. Using various windows of the Tivoli Desktop, you can
        monitor the state of the cluster, networks, nodes, resource groups and
        their locations.

        26,832c801,811
        versions of HACMP to interoperate with those running HACMP V5.2 A
        customer can upgrade an existing cluster running HACMP Version V5.1 or
        Version 4.5 without taking the entire cluster off line. During the
        upgrade process, individual nodes in the cluster can be removed from the
        cluster, upgraded one at a time, and then re-integrated into the cluster.
        Migration aids are available to help convert existing HACMP configuration
        files into the form required by HACMP 5.2.
        versions of HACMP to interoperate with those running HACMP V5.3. A
        customer can upgrade an existing cluster running HACMP Version V5.1,
        V5.2, or Version 4.5 without taking the entire cluster offline. During
        the upgrade process, individual nodes in the cluster can be removed from
        the cluster, upgraded one at a time, and then re-integrated into the
        cluster. Migration aids are available to help convert existing HACMP
        configuration files into the form required by HACMP 5.3. In addition,
        HACMP V5.3 documentation contains separate detailed roadmaps to walk the
        administrators through each migration or upgrade scenario they may have
        in their environment and enable successful upgrade or migration to HACMP
        V5.3.

        38c817,821
        configuration.
        configuration. In addition, in HACMP 5.3, the cluster snapshot can be
        read into the online planning worksheets, and the existing worksheet can
        be reused by the cluster snapshot. This creates more flexibility in how
        users can preserve and reuse their existing successful cluster
        configurations.

        55c838,839
        groups in those clusters.
        groups in those clusters. Clstat also lets you view networks and
        interfaces that are currently up or down in the cluster.

        58,860c842,844
        online or offline. Other options allow groups to be "stuck" to a
        particular node, overriding normal placement policies, and to suspend and
        resume application monitoring.
        online or offline. Other options allow groups to be kept persistently on
        a particular node, overriding normal placement policies, and to suspend
        and resume application monitoring.

        65c849

      • clverify is a tool that ensures that the HACMP

      • HACMP Cluster Verification is a tool that ensures that the HACMP

        67c851
        consistent with the AIX configuration on all nodes. It provides
        consistent with the AIX 5L configuration on all nodes. It provides

        70,871c854,855

      • Online Planning Worksheets provides a graphical tool to
        assist in planning a cluster. This information can be saved as

      • Online Planning Worksheets (OLPW) provide a graphical tool
        to assist in planning a cluster. This information can be saved as

        74c858,1059
        supports a Java runtime environment.
        supports a Java runtime environment. In HACMP 5.3, the OLPW cluster
        definition can be saved in XML format for easy edits. Cluster snapshot
        can also be saved to this format.

      • HAView allows you to monitor HACMP clusters through the
        NetView network management platform. The HAView application monitors the
        clusters using SNMP. HACMP contains the information about cluster
        topology and state; HAView displays the configuration and state of the
        clusters and cluster components through the NetView graphical user
        interface.

      • HATivoli allows you to monitor the state of an HACMP
        cluster and its components through your Tivoli Framework enterprise
        management system. Using various windows of the Tivoli Desktop, you can
        monitor the state of the cluster, networks, nodes, resource groups and
        their locations.

      Ease-of-Use


      • Two Node Configuration Assistant

        Simplifies the process of configuring a two-node HACMP cluster when
        the individual nodes are already connected to shared disks and networks.
        This tool is designed to allow users with basic knowledge of HACMP to
        quickly and correctly set up a basic two-node cluster containing one
        nonconcurrent resource group, one application server, all shared volume
        groups and one service label.

      • Cluster Test Tool

        Tests an HACMP cluster by generating specific events such as node and
        network failures, resource group movements and so forth. It can be run
        unattended, providing a report of the results. This tool is intended to
        help validate an initial HACMP configuration prior to its use in a
        production environment and after configuration changes while the cluster
        is still out of service.

      • Simplified Resource Group Definition

        All resource groups are defined in terms of explicit policies, in the
        same way as custom resource groups were configured in the prior release.
        Existing resource groups are converted on migration.

      • Dependent Resource Groups

        Resource groups can be configured as dependencies for other resource
        groups. This allows for easier configuration and control in clusters
        with multi-tier applications, where one application depends on the
        successful startup of another, and all are required to be kept highly
        available by HACMP. Dependencies are cluster-wide; the applications need
        not be running on the same node.

        In HAMCP 5.3, with the addition of
        resource group location dependencies,
        resource groups can now be kept together on the same node or the same
        site. Or, they can always be kept on separate nodes and/or separate
        sites. This allows the system administrators to plan for and configure
        more complex environments, where not just one but several inter-dependent
        applications are kept highly available and are started or being run on
        specific sets of nodes. The HACMP publications contain real-life
        examples of multi-tier application production environments.

        Additionally, resource groups can be automatically distributed at
        startup time, so that only one is brought on-line on a node This assists
        in load balancing across the cluster.

      • File Collections

        Automatically keeps a specified list of files in sync across the
        cluster. HACMP also detects when a file in a file collection is deleted
        or truncated, and logs a message to inform the cluster administrator.
        Two predefined HACMP file collections are installed by default, to ensure
        that critical HACMP and system files are kept in sync.

      • Cluster Verification with auto correction

        Cluster Verification in HACMP 5.3 checks for a wider variety of
        issues, and applies more automatic corrections, than in previous
        releases. The issues that HACMP now identifies as incorrect could have
        been misconfigured in the cluster configuration in the previous releases
        without necessarily breaking the cluster. A list of errors for which
        HACMP's verification utility takes corrective actions is included in
        Chapter 6 of the Administration Guide. The clverify utility can be
        authorized to correct inconsistencies it detects such as volume group
        definitions, or missing cluster information in system files.

      • Automatic Cluster Configuration Checking

        Automatically runs the clverify utility at midnight on one cluster
        node. HACMP notifies the cluster administrator if problems are detected.
        This reduces the risk that a configuration change will cause a failure at
        a later time.

      • Web-based Cluster Management

        A browser-based user interface (WebSMIT) provides consolidated access
        to the HACMP SMIT functions for configuration and management, a new
        interactive cluster status display and links to HACMP documentation.
        This is similar to the ASCII SMIT interface, so should be familiar to
        existing users. Being web based, it can be access from any platform.
        HACMP V5 also ensures that WebSMIT, as well as other HACMP utilities that
        are accessible remotely, are completely secure.

      • Display Cluster Applications

        Provides an application-centric view of the cluster configuration,
        with applications listed first, and for each of them, the nodes, volume
        groups and networks associated with that application. ASCII and Web
        based versions are provided. The web based version supports expanding
        and collapsing sections of the display; the state of cluster objects is
        indicated with different colors.

      • Cluster-wide User Password Change

        A new cluster password utility links to the AIX 5L password utility to
        allow users to change their passwords across the cluster, when authorized
        by the cluster administrator.

        Additional functionality

      • Recover Planning Worksheets

        The Online Planning Worksheets tool can recover the planning
        worksheets for an existing cluster.

      • Application Monitoring

        Multiple monitors can now be specified for an application, allowing
        both a custom monitor, and process death monitors to be in place.
        Additionally, the application can be monitored during startup - that is,
        during the initial stabilization interval. This is strongly recommended
        for applications in resource groups on which other resource groups
        depend.

      • Reset HACMP Tunables

        Resets the various tunables in the HACMP configuration to the install
        time default, restoring the cluster to a known initial state. This
        assists in troubleshooting cluster problems, and can provide a known
        starting point for administrators taking over an existing cluster.

      • Security

        Builds on the existing connection authentication in HACMP and the
        CtSec facility of RSCT to provide message authentication. This ensures
        the origination and integrity of a message and prevents spoofing attacks
        against the HACMP communications daemons. For further security, message
        encryption can be specified. Supports MD5, DES, Tripple DES and AES
        encrypt.

      • Optional HACMP/XD (Extended Distance) feature

        HACMP/XD (Extended Distance) option provides automated data backup and
        disaster recovery across geographically-dispersed clusters, protecting
        business-critical applications against disasters that affect an entire
        site. HACMP/XD provides data mirroring functions (which are not provided
        in base HACMP) and drives automatic mirror resynchronization after a site
        outage.

        This optional feature of HACMP V5
        offers, in a single package, multiple
        technologies for achieving long distance data mirror, failover, and
        resynchronization:


        • HACMP/XD Geographic Logical Volume Manager (GLVM) is a software-based
          technology for mirroring mission-critical data over standard TCP/IP
          networks. GLVM supports AIX 5L logical volumes to help keep your
          business running. HACMP/XD GLVM exploits IP to enable one or two copies
          of an AIX 5L logic volume to be located at a remote site separated by
          unlimited distance, thus allowing for automated failover to that remote
          site with minimal risk of loss of any data. GLVM uses host-based (LVM)
          mirroring to replicate data between disk enclosures via a SAN (Storage
          Area Network).

        • HACMP/XD support of IBM ESS Metro Mirroring (formerly known as PPRC),
          and SVC PPRC provides automatic failover of
          disks that are PPRC pairs and creates a powerful solution for customers
          on ESS and SVC with PPRC. By automating the management of PPRC,
          recovery time is minimized after an outage, regardless of whether the
          clustered environment is local or geographically dispersed. HACMP/XD in
          combination with PPRC manages your clustered environment to ensure
          mirroring of critical data is maintained at all times. HACMP/XD also
          supports the ESS Enterprise Remote Copy Management Facility. eRCMF
          provides significantly enhanced ease of configuration and management for
          PPRC.

        • HACMP/XD IP-based mirroring provides the well-known unlimited
          distance data mirroring of the former IBM HAGEO product. IP-based
          mirroring allows a cluster of pSeries computers to be placed in two
          widely separated geographic locations, each maintaining an exact replica
          of the application and data. Data synchronization during production,
          failover, recovery, and restoration is provided. HACMP/XD is independent
          of the disk storage used. RAID or mirroring can be used for local
          protection. HACMP/XD IP-based mirroring is done at the logical volume
          layer.

      • Optional HACMP Smart Assist feature

        Smart Assist builds upon existing DB2, Oracle, and WebSphere
        availability strategies to deliver even higher levels of availability for
        your database environment by integrating the power of HACMP for AIX 5L
        for monitoring and recovering from failures of system-level services and
        components. Smart Assist expands HACMP auto-discovery features to
        simplify and streamline the configuration process. These auto-discovery
        features automatically detect components of your database environment and
        nominate them for configuration into HACMP; components such as networks
        (IP and point-to-point), network adapters and devices, volume groups, and
        file systems.

        HACMP Smart Assists extend HACMP's
        power of monitoring different customer
        applications and integrating HACMP clusters with these applications.
        HACMP Smart Assists also recover system-level services and applications'
        components from failures, reducing applications downtime.

        For each of these services that you choose to protect in your database
        environment, Smart Assist will scan your existing database and HACMP
        configurations. It will then draw upon its own knowledge base of optimal
        integrations for the two products, and automatically create the HACMP
        configuration necessary to monitor the WebSphere services and recover
        from failures. The net result is reduced time and effort to configure
        the highest levels of availability for your WebSphere environment. That
        means more time for you to focus on other important functions to drive
        and support your on demand business.

        Smart Assist does not replace HACMP or your database application, but
        rather supplements them. You must install and configure your database so
        that HACMP Smart Assist can gather the information required to protect
        your database services. You must install HACMP on the systems you want
        to be clustered, and configure your base network topology for the
        cluster. This enables Smart Assist to determine which systems are
        available to configure as backup for database services to be protected.

        HACMP and Smart Assist increase the availability of a database
        solution by:


        • Monitoring the Deployment Manager and automatically restarting it on
          backup servers

        • Monitoring third-party products (such as a TDS server) and
          automatically restarting them on backup servers if they fail

        • Ensuring that all necessary system resources (for example, storage
          devices and IP addresses) are configured and made available on backup
          servers in support of application migration.


        80c1065

        HACMP V5.2.0 works with pSeries servers in a

        HACMP V5 works with pSeries and iSeries servers in a


        82,886c1067,1071

        HACMP V5.2.0 supports the pSeries, Cluster 1600, and RS/6000 models
        which are designed for server applications and which meet the minimum
        requirements for internal memory, internal disk, and I/O slots. The
        following pSeries and RS/6000 models and their corresponding upgrades are
        supported in HACMP V5.2.0:

        HACMP V5 supports the pSeries, Cluster 1600, RS/6000, and iSeries
        models which are designed for server applications and which meet the
        minimum requirements for internal memory, internal disk, and I/O slots.
        The following pSeries, iSeries, and RS/6000 models and their
        corresponding upgrades are supported in HACMP V5.2 and V5.3:


        07,916c1092,1098

      • POWER5 servers: POWER5 p5 510 9110-510,
        pSeries models 9111-520,
        9113-550, 9117-570, 9119-590, and 9119-595.
        iSeries models 9406-520, 9406-550, 9406-570, 9406-590, and 9406-595.
        APARs required:

        • HACMP V5.1: IY53044 (ALL models)
        • HACMP V5.2: IY58496 (ALL models)
        • AIX 5.2: IY56554 and IY61014
        • AIX 5.3: IY60930, IY61034, and IY62191; RSCT APAR IY61770.

        • POWER5 servers: pSeries models 9110-510, 9111-520, 9113-550,
          9117-570, 9119-590, and 9119-595. iSeries models 9406-520, 9406-550,
          9406-570, 9406-590, and 9406-595. APARs required:

          • HACMP V5.2: IY58496 (All models)
          • AIX 5L 5.2: IY56554 and IY61014
          • AIX 5L 5.3: IY60930, IY61034, and IY62191; RSCT APAR IY61770

            20,936c1102,1117

          • HACMP does not support Virtual SCSI (VSCSI), or
            Virtual LAN (VLAN) on POWER5 (eServer p5 and i5) models at this
            time.

          • On both p5 and i5, the 520, 550, and 570 integrated serial
            ports are not enabled
            when the HMC ports are connected to a Hardware Management Console.
            Either the HMC ports or the integrated serial ports
            can be used, but not both. Moreover, the integrated serial ports
            are supported only for modem
            and async terminal connections. Any other applications using
            serial ports, including HACMP, require a separate serial port
            adapter to be installed in a PCI slot.

          • On i5 hardware, HACMP will run only in LPARs which are running
            supported releases of AIX. In addition, I/O (LAN and disk
            connections) must be directly attached to the LPARs in which
            HACMP runs. I/O which is intended for use with HACMP is limited
            to that which is listed below as supported in this Sales Manual.

          • HACMP does not support Virtual SCSI (VSCSI) or Virtual LAN (VLAN) on
            POWER5 (IBM eServer p5 and IBM eServer i5) models at this time.

          • On both IBM eServer p5
            and IBM eServer i5, the 520, 550, and 570 integrated
            serial ports are not enabled when the HMC ports are connected to a
            Hardware Management Console. Either the HMC ports or the integrated
            serial ports can be used, but not both. Moreover, the integrated serial
            ports are supported only for modem and async terminal connections. Any
            other applications using serial ports, including HACMP, require a
            separate serial port adapter to be installed in a PCI slot.

          • On IBM eServer i5 hardware,
            HACMP will run only in LPARs that are running
            supported releases of AIX 5L. In addition, I/O (LAN and disk
            connections) must be directly attached to the LPARs in which HACMP runs.
            I/O intended for use with HACMP is limited to that which is listed in the
            device sections below.

            39,944c1120,1126
            G40, J40, R40, R4U, J50, R4U, S70, S7A, S80, and S85 (pSeries 680)

          • SP
            systems: Models 204, 205, 206, 207, 208, 209, 20A, 2A4, 2A5, 2A7, 2A8,
            2A9, 2AA, 304, 305, 306, 307, 308, 309, 30A, 3A4, 3A5, 3A7, 3A8, 3A9,
            3AA, 3B4, 3B5, 3B7, 3B8, 3B9, 3BA, 404, 405, 406, 407, 408, 409, 40A,
            500, 50H, 550, and 55H, including the 604 High Nodes, 604E High Nodes,
            the Power2 Super Chip (P2SC) nodes, and the 375 MHz POWER3 SMP Nodes
            G40, J40, R40, R4U, J50, R4U, S70, S7A, S80, and S85 (pSeries 680)

          • SP systems: Models 204, 205, 206, 207, 208, 209, 20A, 2A4, 2A5, 2A7,
            2A8, 2A9, 2AA, 304, 305, 306, 307, 308, 309, 30A, 3A4, 3A5, 3A7, 3A8,
            3A9, 3AA, 3B4, 3B5, 3B7, 3B8, 3B9, 3BA, 404, 405, 406, 407, 408, 409,
            40A, 500, 50H, 550, and 55H, including the 604 High Nodes, 604E High
            Nodes, the Power2 Super Chip (P2SC) nodes, and the 375 MHz POWER3 SMP
            Nodes

            47,948c1129,1130
            supported pSeries or RS/6000 server in an HACMP V5.2 configuration.
            Models with less than three slots can be used in the HACMP V5.2 server
            supported pSeries or RS/6000 server in an HACMP V5 configuration. Models
            with fewer than three slots can be used in the HACMP V5 server

            51c1133

            HACMP 5.2.0 supports concurrent access configuration with all

            HACMP V5.2 and V5.3 support concurrent access configuration with all


            55,956c1137
            (APARs) if the non-IBM RAID offerings do not work properly with HACMP
            V5.
            (APARs) if the non-IBM RAID offerings do not work properly with HACMP V5.

            63c1144
          • Fixed-disk capacity and mirroring (Logical Volume Manager (LVM) and
          • Fixed-disk capacity and mirroring (Logical Volume Manager and

            65c1146
          • Slot limitations and their effect on creating a single-point-of-
          • Slot limitations and their effect on creating a single point-of-

            79c1160

            HACMP 5.2.0 device support

            HACMP V5.2 and V5.3 device support


            94c1175
            of AIX supported.
            of AIX 5L supported.

            044,1045c1225,1226
          • 2993 Ethernet BNC MC Adapter
          • 2994 10/100 Mbps Ethernet Adapter - SMP
          • 2993 Ethernet BNC MC Adapter
          • 2994 10/100 Mbps Ethernet Adapter -
            SMP

            105,1110c1286,1291

          • IBM TotalStorage (FAStT) DS4100 Storage Server 1724-100
            with DS4000 EXP100 1710-10U Storage Expansion Unit
            (requires DS4000 Disk Firmware YAR51HW0, and APARs for
            HACMP, AIX 5L 5.2 or 5.3, and RSCT; refer to latest service information)

          • IBM TotalStorage DS6000 1750 and DS8000 2107 (requires all
            latest service)

          • IBM TotalStorage (FAStT) DS4100 Storage Server 1724-100 with DS4000
            EXP100 1710-10U Storage Expansion Unit (requires DS4000 Disk Firmware
            YAR51HW0, and APARs for HACMP, AIX 5L 5.2 or 5.3, and RSCT; refer to
            latest service information)

          • IBM TotalStorage DS6000 1750 (requires all latest
            service)

            132c1313

          • IBM 2109 Models S08, S16, F16, F32 and M12 SAN Fibre Channel Switch

          • IBM 2109 Models S08, S16, F16, F32, and M12 SAN Fibre Channel Switch

            134,1136c1315,1317

          • IBM 2145-4F2 TotalStorage SAN Volume Controller
            with IBM TotalStorage SVC Storage Software V1.2.1 and V2.1, and
            with IBM TotalStorage Metro Mirror for SVC V1.2.1 and V2.1.

          • IBM 2145-4F2 TotalStorage SAN Volume Controller with IBM TotalStorage
            SVC Storage Software V1.2.1 and V2.1, and with IBM TotalStorage Metro
            Mirror for SVC V1.2.1 and V2.1

            219c1400
            cable name column except for the terminator, which is supplied with the
            cable name column, except for the terminator, which is supplied with the

            255,1257c1436,1441
            Y-cable Y-cable 2423 2.5 System-to-System Cable (8-bit)
            Y-cable Y-cable 2424 0.6 System-to-System Cable (16-bit)
            Y-cable Y-cable 2425 2.5 System-to-System Cable (16-bit)
            Y-cable Y-cable 2423 2.5 System-to-System Cable
            (8-bit)
            Y-cable Y-cable 2424 0.6 System-to-System Cable
            (16-bit)
            Y-cable Y-cable 2425 2.5 System-to-System Cable
            (16-bit)

            321,1324c1505,1508

            SSA Disk Cabling for HACMP 5.2.0

            HACMP 5.2.0 supports all of the announced SSA cables and Fiber Optics
            Channel Extenders. Refer to the appropriate system manuals for cabling
            information.

            SSA Disk Cabling for HACMP V5

            HACMP 5.2 and 5.3 support all of the announced SSA cables and Fiber
            Optics Channel Extenders. Refer to the appropriate system manuals for
            cabling information.


            326,1328c1510,1512

            Other hardware supported in the previous release of HACMP V5, and
            still covered under IBM warranty service, remains supported in this
            release of HACMP, unless otherwise noted.

            Other hardware supported in the previous release of HACMP V5 and still
            covered under IBM warranty service, remains supported in this release of
            HACMP, unless otherwise noted.


            331,1333d1514

            HACMP 5.2.0 requires AIX 5L on pSeries, Cluster 1600, or RS/6000
            servers with at least four slots.

            The specific requirements for AIX 5.1 or AIX 5.2 are:


            336,1343c1517,1525

          • AIX 5L V5.1 with the 5100-06 Recommended Maintenance package
            (or later modification levels)

          • AIX 5L V5.2 with the 5200-04 Recommended Maintenance package
            (or later modification levels)

          • AIX 5L V5.3 (5765-G03); HACMP V5.1 requires APARs IY56436
            and IY59022; HACMP V5.2 requires IY58496.

            Note: Refer to "Hardware Requirements" section for APARs required
            for POWER5 support.

          • AIX 5L V5.2 with the 5200-04 Recommended Maintenance package (or
            later modification levels)

          • AIX 5L V5.3 with the 5300-02 Recommended Maintenance package (or
            later modification levels) and APAR IY71500

            Note: HACMP V5.3 is not supported on AIX 5L V5.1. HACMP V5.2 continues to
            support AIX 5L V5.1 with the 5100-08 Recommended Maintenance package (or
            later modification levels).

            Note: Refer to the Hardware requirements section for APARs
            required for POWER5 support.


            346c1528,1529

            The RSCT file sets delivered with AIX 5L must be installed. They are:

            The RSCT file sets delivered with AIX 5L must be installed at the
            following minimum levels. They are:


            348,1351c1531,1539
          • AIX 5.1: rsct.compat.basic.hacmp 2.2.1.30, rsct.compat.clients.hacmp
            2.2.1.30 and rsct.core.sec 2.2.1.34.
          • AIX 5.2: rsct.compat.basic.hacmp 2.3.3.0, rsct.compat.clients.hacmp
            2.3.3.0, and rsct.core.sec 2.3.3.1.
          • AIX 5L V5.2: rsct.compat.basic.hacmp 2.3.6.0,
            rsct.compat.clients.hacmp 2.3.6.0, rsct.core.rmc 2.3.6.1, and
            rsct.core.sec 2.3.6.1.
          • AIX 5L V5.3: rsct.compat.basic.hacmp 2.4.2.0,
            rsct.compat.clients.hacmp 2.4.2.0, rsct.core.rmc 2.4.2.1, and
            rsct.core.sec 2.4.2.1.
          • HACMP V5.2 only: AIX 5L V5.1: rsct.compat.basic.hacmp
            2.2.1.30, rsct.compat.clients.hacmp 2.2.1.30, rsct.core.rmc 2.2.1.52, and
            rsct.core.sec 2.2.1.34.

            355,1356c1543,1546
          • AIX 5.1: APARs IY54018, IY53707, IY54140, IY55017.
          • AIX 5.2: APARs IY56213.
          • AIX 5L V5.2: APARs IY72082 and IY72946
          • AIX 5L V5.3: APARs IY72852 and IY72916
          • HACMP V5.2 only: AIX 5L V5.1: APARs IY54018, IY53707,
            IY54140, IY55017.

            359c1549
            licensed program HACMP 5.2.0 to be installed. Except during the upgrade
            licensed program HACMP V5 to be installed. Except during the upgrade

            363,1366c1553,1565

            Some of the devices supported in HACMP 5.2.0 may require a later
            release level of the AIX 5L operating system; refer to the specific
            hardware announcement for the AIX 5L release levels required by the
            hardware.

            Some of the devices supported in HACMP V5 may require a later release
            level of the AIX 5L operating system; refer to the specific hardware
            announcement for the AIX 5L release levels required by the hardware.

            APARs are required for support of DLPAR, CUoD and CBU, as follows:


            • DLPAR, CUoD and CBU on POWER5 systems:

              • For HACMP 5.3: APARs IY73050 and IY73051
              • For HACMP 5.2: APAR IY69525

            • For HACMP 5.2 with DLPAR on POWER4 systems: APAR IY58557

            • For HACMP 5.2 with CUoD on POWER4 systems: APAR IY58497 or IY65930


            368c1567
            AIX (5697-NVW).
            AIX 5L (5697-NVW).

            372c1571

            HACMP V5.2 supports use of AIX V5.2 MPIO for multipath access to disk

            HACMP V5 supports use of AIX 5L V5.2 MPIO for multipath access to disk


            376c1575,1576

          • HACMP V5.2.0 (cluster.es.server.rte 5.2.0.0)

          • HACMP V5 base (cluster.es.server.rte 5.n.0.0) at the same release
            level (n) as HACMP/XD, and APAR IY72928.

            384c1584
            default location, /usr/opt/ibm2105cli
            default location, /opt/ibm/ESScli.

            387c1587
          • HACMP/XD for eRCMF requires ESS eRCMF V2.0.
          • ESS eRCMF V2.0 required for HACMP/XD for eRCMF

            391c1591
          • openssh version 3.6.1 or higher (for access to SVC interface)
          • openssh version 3.6.1, or later (for access to SVC interface)

            399c1599

          • For XD IP-based (HAGEO) mirroring: no additional prerequisites.

          • For XD IP-based (HAGEO) mirroring: No additional prerequisites.

            402,1413c1602,1625
          • HACMP/XD GLVM runs only on HACMP/XD V5.2 (with HACMP APAR IY66555)
            on AIX 5L V5.3 with Recommended Maintenance Package 5300-02 or APARs
            IY68029 and IY68300.


        HACMP Smart Assist for WebSphere requires


        • HACMP V5.2 (5765-F62) base feature, or later modification levels
        • AIX 5L V5.2 (5765-E62) with the 5200-01 Recommended
          Maintenance package, or later modification levels.

        HACMP Smart Assist for WebSphere supports the following applications:

      • HACMP/XD V5.2 (with HACMP APAR IY66555) or HACMP V5.3, on AIX 5L V5.3
        with Recommended Maintenance Package 5300-02 or APARs IY68029 and
        IY68300.


    HACMP Smart Assist requires:


    • HACMP V5 (5765-F62) base feature at the same release level as HACMP
      Smart Assist

    • For Smart Assist for DB2: HACMP V5.3 and either AIX 5L V5.2 with
      Recommended Maintenance Package 5200-01 (or later) or AIX 5L V5.3.

    • For Smart Assist for Oracle: RSCT 2.3.6 filesets.

    • For Smart Assist for WebSphere: RIBM HTTP Server V6.0.

    HACMP Smart Assist supports the following applications or later
    modification levels of these applications:


    • HACMP V5.2 only: WebSphere Application Server V5.0 (in a
      Network Deployment environment only)

    • For new HACMP V5.3 configurations: WebSphere Application Server V6.0
      (in a Network Deployment environment only)

      Note: If migrating from HACMP V5.2 to V5.3, WebSphere Application Server
      V5.0 will continue to be supported.

    • HACMP V5.2:

      415,1416d1626
    • WebSphere Application Server V5.0 (in a Network Deployment (ND)
      environment only)

      420a1631,1639

    • HACMP V5.3:

      • Tivoli Directory Server V5.2
      • Deployment Manager V6.0
      • DB2 Server V8.1 or V82.
      • Oracle Application Server 10g (9.0.4) (AS10g) Cold Failover Cluster
        (CFC)



    450,1451c1669,1670

    HACMP V5.2 supports dynamic upgrade from 4.5 and 5.1, and static
    upgrades from all prior versions:

    HACMP V5.3 supports dynamic upgrade from HACMP 4.5, 5.1, and 5.2, and
    static upgrades from all prior versions:


    453,1462c1672,1681

  • An upgrade from HACMP V4.5 or 5.1 involves installing HACMP 5.2 on
    all nodes in the cluster; however, the Version Compatibility function
    allows you to upgrade the cluster one node at a time, without taking the
    entire cluster offline. Configuration is retained.

  • An upgrade from HACMP/6000 V1.2, 2.1, 3.1, 4.1, 4.2, 4.3, 4.4.0, or
    4.4.1 to HACMP 5.2.0 involves reinstalling HACMP on all nodes in the
    cluster at the same time. This means that at some point, the cluster
    must be brought down; however, with proper planning the downtime can be
    minimized. Configuration is not retained for HACMP releases prior to
    4.5.

  • A dynamic upgrade from HACMP V4.5, 5.1, or 5.2 involves installing
    HACMP 5.3 on all nodes in the cluster; however, the Version Compatibility
    function allows you to upgrade the cluster one node at a time, without
    taking the entire cluster offline. Configuration data is retained.

  • A static upgrade from HACMP/6000 V1.2, 2.1, 3.1, 4.1, 4.2, 4.3,
    4.4.0, or 4.4.1 to HACMP 5.3.0 involves reinstalling HACMP on all nodes
    in the cluster at the same time. This means that at some point, the
    cluster must be brought down; however, with proper planning the downtime
    can be minimized. Configuration is not retained for HACMP releases prior
    to 4.5.

    469,1473c1688,1693

    HACMP does not by itself execute a high availability function beyond
    the nodes in an HACMP cluster.

    HACMP clusters containing multiple LPAR partitions within a single
    pSeries server frame may contain only a single power frame, which would
    represent a potential single-point-of-failure.

    HACMP provides high availability for the applications and resources
    executing on the nodes in the HACMP cluster. HACMP does not provide
    availability beyond the realm of the cluster nodes. A high availability
    implementation requires that there be no single points-of-failures (for
    example, primary and backup HACMP's in LPAR partitions within a single
    server frame).


    477,1478c1697,1698
    interfaces across up to 32 AIX/HACMP images (pSeries servers, SP nodes,
    RS/6000 systems, or LPARs).
    interfaces across up to 32 AIX 5L/HACMP images (pSeries servers, SP
    nodes, RS/6000 systems, or LPARs).

    485c1705
  • Virtual IP Address (VIPA) facility of AIX
  • Virtual IP Address (VIPA) facility of AIX 5L

    489c1709
    (CBU), and Dynamic LPAR (DLPAR).
    (CBU), and Dynamic LPAR (DLPAR):

    491,1492c1711,1712
    through CUoD or DLPAR (refer to Hardware announcement 102-260) or CBU
    (refer to Hardware announcement 103-286). Care must be taken to ensure
    through CUoD or DLPAR (refer to Hardware Announcement 102-260) or CBU
    (refer to Hardware Announcement 103-286). Care must be taken to ensure

    495,1502d1714

    HACMP can provide application high availability through failover of a
    production server to a preassigned and operational backup server. The
    backup server could have processors and memory added through dynamic LPAR
    operations, using facilities that are already part of the configuration.
    Alternatively, the backup server could have processors and memory
    temporarily activated under the CBU offering.

    In this second case, the application must be returned to the primary
    server when that server becomes available.


    511,1518c1723,1725
    conditions.

    The HACMP heartbeat interval should then be extended sufficiently to
    prevent HACMP from perceiving a system failure for the duration of that
    change. Additional system tuning may be required. The customer should
    understand that these tuning changes imply that HACMP could respond more
    slowly to monitored cluster events. IBM is not responsible for failures
    due to incorrect settings of these values, as these tuning parameters are
    unique for every customer environment.
    conditions. IBM is not responsible for failures due to incorrect
    settings of these values, as these tuning parameters are unique for every
    customer environment.


    521c1728
    modify some system files which are monitored by TCB. This will cause
    modify some system files that are monitored by TCB. This will cause

    524c1731
    will not affect the operation of HACMP, TCB, or of the AIX system,
    will not affect the operation of HACMP, TCB, or of the AIX 5L system,

    533,1539c1740,1745

  • PPRC support for ESS includes
    the ESS 2105-F20 and 2105-800 models, in either
    mixed-model or like-model pairs. Only one supported Enterprise Storage
    Server is supported at each site.

  • PPRC support for SVC includes only the
    IBM 2145-4F2 TotalStorage SAN Volume Controller
    with the SVC software listed under Hardware Requirements.

  • PPRC support for ESS includes the ESS 2105-F20 and 2105-800 models,
    in either mixed-model or like-model pairs. Only one supported Enterprise
    Storage Server is supported at each site.

  • PPRC support for SVC includes only the IBM 2145-4F2 TotalStorage SAN
    Volume Controller with the SVC software listed in the Hardware
    Requirements
    section.

    548,1550c1754,1758
    multi-node concurrent access, is not yet available.

  • GLVM remote data mirroring is currently limited to a single
    network connection per node.
    multinode concurrent access, is not yet available.

  • GLVM remote data mirroring is currently limited to a single network
    connection per node.

    Note: For additional information regarding these GLVM limitations, refer
    to Software Announcement 205-085, dated March 15, 2005.


    554,1556c1762

    For additional information regarding GLVM, refer to the
    IBM HACMP/XD GLVM Software Announcement 205-085, dated April 12, 2005.

    Specific limitations of HACMP Smart Assist for WebSphere

    Specific limitations of HACMP Smart Assist


    557a1764,1765

  • Smart Assist for DB2 cannot be used to configure a cluster in a
    partitioned (DB2 UDB DPF) environment.

    560,1567c1768,1775
    configured into HACMP by Smart Assist.

  • HACMP resource groups created by Smart Assist for any of the
    WebSphere components are limited to two nodes with cascading behavior.
    This assumes an unloaded standby system is available, with enough
    resources to assume the workload of the active system.

  • Given the previous statement, a single standby system may be
    configured to protect multiple workloads, but is assumed to only
    effectively execute one workload at a time.
    configured into HACMP by the WebSphere Smart Assist.

  • The default configuration created for the WebSphere components
    assumes an unloaded standby system is available, with enough resources to
    assume the workload of the active system.

  • A single standby system may be configured to protect multiple
    workloads, but is assumed to only effectively execute one workload at a
    time. The default configuration can be subsequently modified to meet
    installation-specific requirements.

    571,1572c1779,1780
    administrator to place the IHS data on a shareable volume group that may
    be passed between nodes.
    administrator to place the IHS data on a shareable volume group
    accessible by both nodes.

    576d1783

  • HACMP supports LAN-attached clients with TCP/IP protocol.

    578,1579c1785,1787
    amount of time it takes for AIX to detect the failure. Some token-ring
    failures cannot be detected in less than 60 seconds.
    amount of time it takes for AIX 5L to detect the failure. With the
    default network detections setting, some token-ring failures may require
    more than 60 seconds to be detected.

    582,1585d1789

  • Clients most appropriate to an HACMP environment are ASCII terminals
    attached via LAN-based terminal servers, Xstations, or TCP/IP-based
    client systems such as an X-server TCP/IP interface on a PC, UNIX**
    workstation, or a UNIX server.

    592c1796

  • The AIX Journaled File System (JFS and JFS2) does not support

  • The AIX 5L Journaled File System (JFS and JFS2) does not support

    595,1599c1799,1802

  • Some HACMP command operands should not be used on systems also
    running NetView or other programs that catch SNMP traps. Refer to HACMP
    documentation for details on the use of the clinfo daemon with
    such programs.

  • Although the Version Compatibility function will allow HACMP V5.2 to

  • For systems running NetView or other programs that catch SNMP traps,
    refer to HACMP documentation for details on the use of the
    clinfo daemon with such programs.

  • Although the Version Compatibility function will allow HACMP V5.3 to

    607,1610c1810,1811
    message translation is provided for Japanese, but some RSCT messages are
    provided in English only.

  • HACMP 5.2 supports the AIX 5L 64-bit kernel; however, when used with
    PSSP V3.5, PSSP supports only the 32-bit kernel.
    message translation is provided for Japanese, but other system components
    such as RSCT produce messages in English only.

    613c1814

    HACMP 5.2.0 cluster performance can be measured and reported in many

    HACMP 5.3.0 cluster performance can be measured and reported in many


    628c1829

    HACMP 5.2.0 includes conversion utilities to help you convert your

    HACMP 5.3.0 includes conversion utilities to help you convert your


    631,1634c1832,1835

    All of these conversions can be done while
    your cluster is not
    operational; for information regarding node conversion while maintaining
    cluster operation, refer to the Compatibility section.

    All of these conversions can be done while your cluster is
    not operational; for information regarding node conversion
    while maintaining cluster operation, refer to the
    Compatibility section.


    636,1646c1837,1838
    configurations of HACMP V4 (HAS, ES, CRM, or ESCRM) or HACMP V5.1 to
    HACMP V5.2:

    • HACMP for AIX, V4.5.0
    • HACMP for AIX, V5.1

    HACMP 5.2.0 includes conversion utilities to help you migrate your
    configuration between products in the HACMP family.

    You can convert from the High Availability Network File System (HANFS)
    feature of older versions of HACMP to HACMP V5.2; however, this requires
    an intermediate conversion to HAS V4.5, then a conversion to HACMP V5.2:
    configurations of HACMP V4 (HAS, ES, CRM, or ESCRM) or HACMP V5 to HACMP
    V5.3:


    648c1840,1842
  • HACMP for NFS (HANFS), V4.3.1
  • HACMP for AIX 5L, V4.5.0
  • HACMP for AIX 5L, V5.1
  • HACMP for AIX 5L, V5.2

    649a1844,1845

    HACMP 5.3.0 includes conversion utilities to help you migrate your
    configuration between products in the HACMP family.


    659,1660c1855,1856

    License Information and Proof of Entitlement
    documents will display automatically when HACMP V5 is installed.

    License Information and Proof of Entitlement documents will display
    automatically when HACMP V5 is installed.


    664,1668c1860,1869
  • HACMP for AIX: Concepts and Facilities (SC23-4864)
  • HACMP for AIX: Planning and Installation Guide (SC23-4861)
  • HACMP for AIX: Administration and Troubleshooting Guide (SC23-4862)
  • HACMP for AIX: Programming Client Applications (SC23-4865)
  • HACMP for AIX: Glossary (SC23-4867)
  • HACMP for AIX 5L: Concepts and Facilities Guide (SC23-4864)
  • HACMP for AIX 5L: Planning and Installation Guide (SC23-4861)
  • HACMP for AIX 5L: Administration Guide (SC23-4862)
  • HACMP for AIX 5L: Troubleshooting Guide (SC23-5177)
  • HACMP for AIX 5L: Programming Client Applications (SC23-4865)
  • HACMP for AIX 5L: Master Glossary (SC23-4867)

    For HACMP/XD GLVM customers:


    • HACMP/XD GLVM Planning and Administration Guide (SA23-1338)

      672c1873,1874
    • HACMP/XD: ESS PPRC Planning and Administration Guide (SC23-4863)
    • HACMP/XD: ESS PPRC Planning and
      Administation Guide (SC23-4863)

      676,1679c1878,1882
    • HACMP/XD for AIX 5L for HAGEO Technology Concepts and Facilities
      (SA22-7955)
    • HACMP/XD for AIX 5L for HAGEO Technology Planning and Installation
      Guide (SC23-4862)
    • HACMP/XD for AIX 5L for HAGEO
      Technology Concepts and Facilities (SA22-7955)
    • HACMP/XD for AIX 5L for HAGEO
      Technology Planning and
      Installation Guide (SC23-4862)

      683c1886,1889
    • HACMP Smart Assist for WebSphere User Guide (SC23-4877)
    • HACMP for AIX 5L: Smart Assist for WebSphere
      User's Guide (SC23-4877)
    • HACMP for AIX 5L: Smart Assist for Oracle (SC23-5178)
    • HACMP for AIX 5L: Smart Assist for DB2 (SC23-5179)

      694,1698c1900,1905

      This program uses the security and auditability features of AIX 5L
      V5.1 and V5.2 for servers.

      The customer is responsible for evaluation, selection, and
      implementation of security features, administrative procedures, and
      appropriate controls in application systems and communication facilities.

      This program uses the security and
      auditability features of AIX
      5L V5.2 and V5.3 for servers. The customer is responsible for
      evaluation, selection, and implementation of security features,
      administrative procedures, and appropriate controls in application
      systems and communication facilities.


      705,1706d1911

      UNIX is a registered trademark in the United States and other
      countries licensed exclusively through X/Open Company Limited.