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Scalability and Resource Management
- Dynamic logical partitioning adds and removes processors, real
memory, and I/O from active logical partitions without rebooting the
systems. Processors, memory, and I/O slots can be assigned via the
Hardware Management Console.
- Dynamic Capacity Upgrade on Demand enables you to order and install
POWER4 systems with additional hardware resources (processors) than what
is currently required and keep these resources in reserve until they are
required as future business application workloads dictate. To enable the
additional resources, the system administrator can dynamically turn on
the resources using DLPAR services without having to bring down the
system. This function is well suited for those who have unpredictable
application workload requirements.
- Dynamic CPU Guard automatically and dynamically removes failing
processors from a system image before they cause a system failure. If
spare processors are available on the systems, they can automatically
replace the failing processors.
- Memory affinity support may improve the performance of memory-access-
intensive, high-performance computing jobs running on multichip module
p690 and p670 systems.
- The POWER4 processor in the p690 system supports 4 KB and 16 MB
virtual page sizes.
The large page provides performance improvements to high-performance
computing applications. AIX V5.2 supports large page use for both 32-and
64-bit applications and on both 32-bit and 64-bit kernels.
- Enhanced Workload Manager (WLM) gives system administrators more
control of resources. Functions such as time-based setting make changes
to configuration easier. A set of processors may be associated with a
WLM class. Jobs assigned to such a WLM class run only on the processors
associated with the WLM class.
- The existing per-process file descriptor limit is increased from 32K
to 64K under both 32-bit and 64-bit kernels.
- Enhanced journaled file system, JFS2, increases file and file system
sizes to 16 terabytes (TB) with the 64-bit kernel. The 32-bit kernel
continues to support 1 TB. Larger file systems created under the 64-bit
kernel can be mounted only with the 64-bit kernel.
- AIX V5.2 includes support for the Universal Disk Format (UDF) V1.50
file system for the pSeries and RS/6000-supported DVD-RAM and DVD-ROM
optical drives.
With the UDF file system you can back up and restore AIX files and
backup images. You can also start the system and install from disks
created using the mkcd command with DVD-RAM media. Software vendors and
other users can create DVD distribution media for programs and data. AIX
creates and supports file names only in 8-bit OSTA compressed UNICODE
format.
Reliability, Availability, and Serviceability
- With the improved system dump estimation mechanism, system
administrators have a more accurate measure of the storage required for a
complete system dump. As a result, the probability of losing a crash
dump due to space overflow is reduced.
- Core dumps are generated without stopping and restarting
applications. The core dumps can be sent to IBM support for further
analysis. This function, combined with the snapshot backup, yields
easier problem determination.
- Hang conditions on I/O devices can be detected and recovered without
bringing systems to a slow halt. Based on a user-defined timeout
threshold, lost I/O is detected and the system alerts the user. Users
can also configure the system for an automatic reboot.
- More information is displayed on the second line of LED display
panel, if one is available. The extra information corresponds to the LED
code that is displayed and helps system operators monitor the boot
process.
- Automated dump analysis tool, adump, is enhanced to execute custom
Perl scripts for dump analysis.
- AIX V5.2 isolates the damage caused by uncorrectable data corruptions
to a user process. This can help avoid more severe situations such as an
entire partition reboot or a complete system reboot if it is not
partitioned.
Enterprise Storage Management
- An industry-standard programming interface, Common Host Bus Adapter
(HBA) API, accesses management information in Fibre Channel HBAs.
Storage area network (SAN) developers can use HBA to manage, monitor, and
deploy a SAN.
- Logical Volume Manager (LVM) enhancements:
- The alignment and size restrictions of I/O to the LVM device driver
are removed, helping to improve large unaligned I/O performance by not
requiring that the I/O devices be divided into several smaller aligned
I/O devices.
- LVM enables a RAID to increase the size of a logical unit number
(LUN) up to 1 TB. After a varyoffvg and varyonvg cycle completes, the
new disk size becomes effective and LVM can use the additional disk
space.
- LVM supports splitting one or more disks from an active mirrored
volume group into a new temporary volume group so that a backup of the
volume group can be made. The temporary volume can be disbanded and the
split disk reincorporated into the original volume group. Stale
partitions are automatically synchronized. Only partitions that are
written to while the temporary volume group is in place need to be marked
as stale and synchronized when the disks are reincorporated.
- A snapshot feature enables a point-in-time backup of a JFS2 file
system.
- System administrators can use SMIT to specify file system sizes in
blocks of 512 bytes, 1 MB, or 1 GB during creation or modification of a
file system.
Cluster Systems Management (CSM)
- CSM for AIX can manage multiple machines from one single point of
control. This solution for distributed systems management allows a
system administrator to install and set up a cluster that can include
pSeries servers, xSeries servers, or both. The system administrator can
control the cluster by using remote parallel command execution, file
synchronization, hardware control, and distributed monitoring with
automated responses.
- CSM for AIX enables xSeries servers running CSM V1.3 for Linux to
join the cluster and be managed along with pSeries servers from the same
single point of control.
- Use of CSM is authorized only under the terms of either 60-day Try
and Buy or a full production license (5765-F67) and LUM key.
System Security
- You can perform account authentication using Public Key
Infrastructure (PKI) certificates.
- AIX V5.2 provides integrated support of the Pluggable Authentication
Mechanism (PAM). The integration of standards such as RFC 2307, Kerberos
V5, and PAM with existing interfaces supports new features in existing
applications without the need for recompilation.
- A new version of the cryptographically secure random number generator
supports cryptographic applications that require high-quality, secure
random numbers. This version replaces the existing UNIX random number
generator functions as part of the UNIX standard. AIX Internet Key
Exchange (IKE) uses this random generator approach to increase its
security.
- You can automate and simplify the complex tasks of configuring the
AIX client machines and the IBM Directory Server for use by AIX. The
administrator can unify the information used to manage the different
subsystems under a common top-level container object. Also included is
the newly enhanced System V print directory enablement libraries that
make use of this unification.
- AIX Simple Network Management Protocol (SNMP) enterprise-specific
instrumentation defines over 150 AIX-specific SNMP MIB objects describing
AIX in a new enterprise-specific MIB. In AIX V5.2, the SNMP sub-agent
supports only mandatory MIB objects. The remaining objects should be
supported in future releases. In addition, a new command sends SNMP
traps from the command line. The administrator can send traps from
scripts or any other place that needs a custom trap sent to notify
enterprise management applications of an important event.
- IBM Directory Server V4.1 includes a powerful Lightweight Directory
Access Protocol (LDAP) identity infrastructure for starting comprehensive
identity management applications and advanced software architectures such
as Web services.
- AIX V5.2 delivers self-managing solutions through industry-leading
implementation of enterprise identity mapping, an autonomic technology
initiative.
- AIX includes the 'tcbck' command, which monitors host-based
abnormalities and reports unexpected changes in the system. The 'tcbck'
command can now report these events to the Tivoli Risk Manager.
Network Security
- Hardware acceleration enables IP security to offload encryption and
security management to an adapter such as IBM 10/100 Ethernet PCI Adapter
II.
- IKE supports a generic data management tunnel in Dynamic Host
Configuration Protocol (DHCP) environments where IP addresses are
dynamically assigned. IKE also supports Diffie Hellman group 5.
Symmetric keys derived using Diffe Hellman group 5 are more secure than
the currently implemented Diffe Hellman groups 1 and 2. With IP security
static filter rules, users can enter a description of up to 80
characters.
Development and Performance Tools
- AIX Developer Kit, Java 2 Technology Edition, V1.3.1, 32-bit Version
for POWER is included with the AIX base operating system. The 64-bit
version is available on the AIX V5.2 Bonus Pack.
- Performance analysis tools include support for thread (curt), lock
(splat), procfs (truss and proc commands), and JFS2 (filemon and
fileplace). The GUI-based Xprofiler provides an integrated environment
for analyzing application CPU usage.
- System administrators can use systems management interfaces
(Web-based System Manager and SMIT) to manage performance tuning
parameters and preserve those settings whenever the system is rebooted.
These interfaces support operating system, memory, network, and NFS
tuning parameters.
- Available as licensed programs, the C++, C, and FORTRAN compiler
products are updated to support AIX 5.2.
Network Technology and Performance
- The Domain Name Server improves support for dynamic updates, zone
transfers, security, and IPv6.
- SNMP V3 increases security robustness through both authentication and
encryption. Users can securely configure and monitor a system remotely.
- Mobile devices that use Mobile IPv6 enable the devices to keep the
same global address on supporting networks. Applications maintain
transport and higher-layer connections while changing locations.
- With enhanced network availability, an EtherChannel Link Aggregation
can be backed up by a standby Ethernet Adapter. This feature is
supported on the IBM 10/100 Mbps Ethernet PCI Adapter.
- Network technology RAS features include better management of network
tunables and additional kernel debugger support.
- Asynchronous transfer mode is enhanced to increase network
interoperability.
Interoperability
- AIX Toolbox for Linux Applications includes updated versions of many
useful Open Source applications.
- CIFS/SMB Client is a new AIX Virtual File System offered in AIX 5.2.
This feature allows the mounting of file systems shared (exported) by CIFS
servers including Windows 2000, Windows XP, Samba 2.X, and AIX Fast
Connect 3.1. It also allows AIX applications to access data resident on
Windows and other CIFS servers.
- AIX Fast Connect is enhanced with the support of CIFS DFS (MS Dfs)
and LDAP-based authentication for CIFS clients. AIX Fast Connect is a
licensed program providing file and print services for Windows clients on
AIX 5L.
Standards
- AIX 5L for POWER V5.2 is designed to conform to the UNIX 98
standard.
- AIX V5.2 is designed to conform to the ISO/IEC 9899:1999
international standard for the C programming language, commonly referred
to as C99.
- AIX V5.2 is designed to provide the asynchronous input and output
option from IEEE Standard 1003.1-2001.
Base Operating System
- System libraries and headers incorporate APIs from the ISO/IEC
9899: 1999 C language standard and the single UNIX specification Version
3.
- A device automatic mount facility provides a mechanism to
automatically mount CD and DVD file systems. The facility is included
in the bos.cdmount fileset.
- The version of the Perl language installed with AIX is updated to
5.8.
- System V proc commands display information in the /proc file system
in the System V format.
System Management
- With alternative disk installation migration, system administrators
can migrate systems to a new AIX level while the systems are still
operating properly.
- Additional locales in Arabic, Chinese, English, Indonesian,
Malaysian, and Spanish are introduced in AIX V5.2.
- The use of the euro currency symbol, and the currency formatting
rules concerning it, is the default currency handling method in AIX
locales for those countries that are European Monetary Union members.
- A new X output method is added for unicode locales taking advantage
of an X11R6 font feature that allows an application to load the subset of
a font.
- System administrators can maintain a proactive maintenance strategy
using the comparison report feature. Users can compare the filesets
installed on their systems with the contents of an image repository or a
list of available updates that can be downloaded from the pSeries Support
Web site. This function can be executed from the command line
(compare_report) or SMIT (smitty compare_report). Selective reports can
be used as input to request updates from the Web site.
Documentation Technology
Features:
- The entire software documentation library for AIX Versions 4.3, 5.1,
and 5.2 including new books covering security, dynamic LPAR, and
performance tools
- How-to tips that offer in-depth instructions to help system
administrators with specific tasks as well as FAQs that offer users quick
answers to common questions
- A message database that shows users and system administrators what
error messages mean and, when appropriate, how to recover from the errors
- Links to Redbooks, white papers, technical reports, release notes,
and readme files; IBM and non-IBM pages for system administrators, users,
and application developers; and pSeries and RS/6000 hardware
documentation
New System Support
- pSeries 630 Model 6C4
- pSeries 630 Model 6E4
- AIX support for 16/48X IDE DVD-ROM drive on pSeries systems.
- AIX support for 16/48X SCSI Auto-Docking DVD-ROM drive on
pSeries 670/690 systems.
- Enhanced I/O error handling increases system availability
with a recovery strategy for errors that occur during I/O
operations on the PCI bus. AIX support of this feature uses
specific pSeries hardware enablement, which allows each PCI
slot to function as a separate PCI bus. When a PCI bus error
occurs, each adapter is isolated; error recovery is achieved
without affecting the operation of other adapters in that
system.
Support Removals for Micro Channel Architecture and PR*P
Architecture
Future releases of AIX, beginning with the availability of AIX 5L
Version 5.2, will not support:
- RS/6000 or OEM hardware based on the MCA bus.
- Scalable Parallel (SP) nodes based on the MCA bus.
- RS/6000, Power Personal Systems or OEM hardware based on
the PReP architecture.
- POWER 1, POWER 2, POWER Single Chip (RSC), POWER 2 Single Chip
(P2SC), 601 and 603 processors.
- PCI adapters that were only available on PReP hardware.
- All ISA adapters.
Many of the IBM systems no longer
supported are the following:
- Unsupported MCA-based systems:
Arch. Type/Mdl Arch. Type/Mdl
MCA 7006-41T MCA 7013-580
MCA 7006-41W MCA 7013-58F
MCA 7006-42T MCA 7013-58H
MCA 7006-42W MCA 7013-590
MCA 7007-N40 MCA 7013-591
MCA 7008-M20 MCA 7013-595
MCA 7008-M2A MCA 7013-59H
MCA 7009-C10 MCA 7013-J01
MCA 7009-C20 MCA 7013-J30
MCA 7010-120 MCA 7013-J40
MCA 7010-130 MCA 7013-J50
MCA 7010-140 MCA 7015-930
MCA 7010-150 MCA 7015-950
MCA 7010-160 MCA 7015-95E
MCA 7011-220 MCA 7015-970
MCA 7011-22G MCA 7015-97B
MCA 7011-22S MCA 7015-97E
MCA 7011-22W MCA 7015-97F
MCA 7011-230 MCA 7015-980
MCA 7011-23E MCA 7015-98B
MCA 7011-23S MCA 7015-98E
MCA 7011-23T MCA 7015-98F
MCA 7011-23W MCA 7015-990
MCA 7011-250 MCA 7015-99E
MCA 7011-25E MCA 7015-99F
MCA 7011-25F MCA 7015-99J
MCA 7011-25S MCA 7015-99K
MCA 7011-25T MCA 7015-R10
MCA 7011-25W MCA 7015-R20
MCA 7012-320 MCA 7015-R21
MCA 7012-32E MCA 7015-R24
MCA 7012-32H MCA 7015-R30
MCA 7012-340 MCA 7015-R3U
MCA 7012-34H MCA 7015-R40
MCA 7012-350 MCA 7015-R4U
MCA 7012-355 MCA 7015-R50
MCA 7012-360 MCA 7015-R5U
MCA 7012-365 MCA 7030-397
MCA 7012-36T MCA 7030-3AT
MCA 7012-370 MCA 7030-3BT
MCA 7012-375 MCA 7030-3CT
MCA 7012-37T MCA 7202-900
MCA 7012-380
MCA 7012-390
MCA 7012-397
MCA 7012-39H
MCA 7012-G02
MCA 7012-G30
MCA 7012-G40
MCA 7013-520
MCA 7013-52H
MCA 7013-530
MCA 7013-53E
MCA 7013-53H
MCA 7013-540
MCA 7013-550
MCA 7013-55E
MCA 7013-55L
MCA 7013-55S
MCA 7013-560
MCA 7013-56F
MCA 7013-570
MCA 7013-57F
- Unsupported PReP-based systems:
Arch. Type/Mdl Desc Arch. Type/Mdl Desc
PReP 7020-OUO 40P PReP 6070-OAA PC POWER 850
PReP 7020-SPE 40P PReP 6070-NAD PC POWER 850
PReP 7020-B1B 40P PReP 6070-AAD PC POWER 850
PReP 7020-BIC 40P PReP 6070-OAD PC POWER 850
PReP 7020-D1D 40P PReP 6070-NAB PC POWER 850
PReP 7020-D2D 40P PReP 6070-OAB PC POWER 850
PReP 7020-D4E 40P PReP 6070-AAE PC POWER 850
PReP 6042-850 Notebook PReP 6070-OAE PC POWER 850
PReP 7247-821 Notebook PReP 6070-NAM PC POWER 850
PReP 7247-822 Notebook PReP 6070-OAN PC POWER 850
PReP 7247-823 Notebook PReP 6070-NAC PC POWER 850
PReP 7249-860 Notebook PReP 6070-OAC PC POWER 850
PReP 6015-066 40P PReP 6070-NAF PC POWER 850
PReP 7248-100 43P-100 PReP 6070-AAF PC POWER 850
PReP 7248-120 43P-120 PReP 6070-OAF PC POWER 850
PReP 7248-132 43P-132 PReP 6070-NAO PC POWER 850
PReP 7043-140 43P-140 PReP 6070-AAP PC POWER 850
PReP 7043-240 43P-240 PReP 6070-NAQ PC POWER 850
PReP 7024-E20 PReP 6070-AAQ PC POWER 850
PReP 7024-E30 PReP 6070-OAQ PC POWER 850
PReP 7025-F30
PReP 7025-F40
PReP 7317-F3L
PReP 7026-H10
PReP 6050-NAA PC POWER 830
PReP 6050-OAA PC POWER 830
PReP 6050-NAD PC POWER 830
PReP 6050-AAD PC POWER 830
PReP 6050-OAD PC POWER 830
PReP 6070-NAA PC POWER 850
- Unsupported SP Nodes (all MCA-based)
SP-MCA 2001 62 MHz Thin Node
SP-MCA 2002 66 MHz Thin Node
SP-MCA 2003 66 MHz Wide Node
SP-MCA 2004 66 MHz Thin Node
SP-MCA RPQ 66 MHz Wide (59H)
SP-MCA 2005 77 MHz Wide Node
SP-MCA 2006 112 MHz High Node
SP-MCA 2007 135 MHz Wide Node
SP-MCA 2008 120 MHz Thin Node
SP-MCA 2009 200 MHz High Node
SP-MCA 2022 160 MHz Thin Node
- Unsupported I/O Adapters:
Type Feature Description
PCI Adapter 2408 F/W SCSI SE
PCI Adapter 2409 F/W SCSI DIFF
PCI Adapter 2638 Video Capture
PCI Adapter 2648 GXT150P Graphics Adapter
PCI Adapter 2657 S15 Graphics Adapter
PCI Adapter 2837 MVP MULTIPCI Adapter
PCI Adapter 2839 GXT110P Graphics Adapter
PCI Adapter 2854 GXT500P Graphics Adapter
PCI Adapter 2855 GXT550P Graphics Adapter
PCI Adapter 2856 7250 Attach Adapter
PCI Adapter 7252 GXT1000, 7250-002 Internal Graphics
Accelerator
PCI Adapter 7253 GXT1000, 7250-002 WITH ADVANCED GRAPHICS
Feature
PCI Adapter 7254 Video Output Option
PCI Adapter 8242 10/100BaseT Ethernet PCI
ISA Adapter 2647 Video Capture
ISA Adapter 2701 4 Port SDLC
ISA Adapter 2931 8-Port EIA232 Adapter
ISA Adapter 2932 8-Port EIA232/422 Adapter
ISA Adapter 2933 128-Port EIA232 ASYNCH
ISA Adapter 2961 1 Port X.25 Adapter
ISA Adapter 2971 Token Ring Adapter
ISA Adapter 2981 Ethernet RJ45/BNC
ISA Adapter 8240 Ethernet Short TP
ISA Adapter 8241 Ethernet Short BNC
Removal of Obsolete Locales
Support for the following locales based on IBM-850 codeset is
removed from AIX 5.2.
Ca_ES Catalan Spain
Da_DK Danish Denmark
De_CH German Switzerland
De_DE German Germany
En_GB English Great Britain
En_US English United States
Es_ES Spanish Spain
Fi_FI Finish Finland
Fr_BE French Belgium
Fr_CA French Canada
Fr_FR French France
Is_IS Icelandic Iceland
It_IT Italian Italy
Nl_BE Dutch Belgium
Nl_NL Dutch Netherlands
No_NO Norwegian Norway
Pt_PT Portuguese Portugal
Sv_SE Swedish Sweden
Accessibility by People with Disabilities
Using AIX Documentation
The AIX product documentation library is available online at:
http://www-1.ibm.com/servers/aix/library/index.html
It is accessible with text-only browsers, such as Lynx, or talking
browsers, such as IBM Home Page Reader. The AIX man pages are available
from the command line and are accessible though the same assistive
technologies used to access commands and output.
Using the Command Line
AIX makes all of its functions available for use through the command
line so that they can be supported by assistive technologies that support
the Emacs environment. The command interface is also accessible remotely
using assistive technologies, such as JAWS, which support Telnet or
terminal emulator environments in the Windows operating system.
Using Web-based System Manager and SMIT
Web-based System Manager offers full keyboard accessibility and
limited support for changing font size for system administrators. Screen
reader support is not currently available. System Management Interface
Tool (SMIT) menus are accessible through the same assistive technologies
that provide command line accessibility. The character-based version of
SMIT (which is activated with the smitty command on a graphical terminal)
should be used instead of the Motif, or GUI, version activated with the
smit command.
Using X Keyboard Extensions to Increase Accessibility in the X
Windows System Environment
If you are using Telnet or a terminal emulator program to access AIX,
keyboard-accessibility features are provided by either the application or
your operating environment. For example, in the Windows operating system
you can open the Control Panel and select Accessibility Options to enable
and adjust keyboard accessibility settings. Keyboard-accessibility
options are also available on an AIX graphical console running the X
Window System software or the Common Desktop Environment (CDE). Refer to
the Accessibility link on the pSeries Information Center, or your AIX or
CDE documentation, for more information on configuring and using
accessibility features of the X Window and CDE environments.
AIX Installation
Installation menus and other screens displayed during base AIX
installation are not accessible. Use Network Installation Manager (NIM)
as an alternative means of installing AIX. IBM assumes that Section 508
applies only to normal and routine end-user operations, and not to setup
and service functions.
XPROFILER
The performance tool, xprofiler, is a Motif program that does not meet
all accessibility requirements. Use the text-based tool, gprof, to
provide the same information in tabular form.
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Technical Description
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Selected PowerPC systems, POWER3 systems, and POWER4 systems that
implement the CHRP architecture, with the exception of RS/6000 SP.
Systems operating on AIX 5L for POWER V5.2 are supported only when
used within the system operating environments described in the
appropriate hardware announcements and when used within the specified
operating environment. When systems operating on AIX 5L for POWER V5.2
are used with other software or software in later announcements, other
limitations may be included.
AIX 5L for POWER V5.2 supports systems with at least 128 MB of
physical memory and a disk size of at least 2.2 GB.
CSM V1.3 requires APAR IY34493, IY34724, and IY34725.
HMC Recovery Software V1.3 for pSeries
New systems include preloaded HMC software and firmware levels to
support dynamic LPAR and Capacity Upgrade on Demand. For previously
shipped systems, including p690 (7040-681), p670 (7040-671), or p630
(7028-6C4), the HMC software must be upgraded first to V1R3 and then the
system microcode must be upgraded with the 10/2002 system microcode
update, or later (12/2002, or later, for the p630). The firmware release
information is available from:
http://techsupport.services.ibm.com/server/mdownload
The HMC Recovery Software for pSeries is available to order from the
Software Delivery and Fulfillment.
IBM Directory V4.1
To install the IBM Directory, your computer must meet the following
minimum system requirements.
- IBM Directory client:
For the latest information on supported versions of AIX, visit:
/usr/ldap/readme/lang/readme/client.txt
Using a Web browser, visit:
/usr/ldap/web/lang/readme/client.htm
A minimum of 128 MB RAM is required, though 256 MB is strongly
recommended.
- IBM Directory server (including the client):
For the latest information on supported versions of AIX, refer to the
server README file in:
/usr/ldap/readme/lang/readme/server.txt
Using a Web browser, visit:
/usr/ldap/web/lang/readme/server.htm
In addition to the client requirements, the server requires one of the
following Web servers, or a later version, installed and configured:
- IBM HTTP Server 1.3.19
- Lotus Domino Enterprise 5.0.2b Webserver(TM)
- Apache Server 1.3.12
- Netscape FastTrack Server 3.01
- Netscape Enterprise Server 3.6.3, 4.0
Note: You must have a secure Web server to ensure that the transmission
of your administration data is secure. For instructions, refer to the
online documentation.
DB2(TM) V7.2 is included with the IBM Directory. Higher versions of
DB2 might also be supported. If you already have DB2 installed, you need
approximately 45 MB of disk space. You need approximately 135 MB of disk
space for both the IBM Directory and DB2. Disk space required for data
storage depends on the number and size of database entries.
Program Specifications
AIX 5L for POWER V5.2 includes:
- 32-way SMP, 64-bit kernel, and device drivers
- Workload Manager
- Dynamic Logical Partitioning
- Enhanced Journaled File System (JFS2)
- Multipath I/O
- Capacity Upgrade on Demand
- Mobile IPv6
- SNMPv3
- Network Installation Management
- Distributed Web System Manager
- IBM Directory
- IBM AIX Developer Kit, Java(TM) 2 Technology Edition, V1.3.1
- HTML-based documentation
AIX 5L for POWER V5.2 conforms to the following major industry
standards:
- IEEE POSIX(TM)
- POSIX 1003.1-1996, system interfaces (including threads) and header
files
- POSIX 1003.2-1993, system commands and utilities
- The Open Group: UNIX 98 Base Brand (Single UNIX Specification V2)
International language support:
- Unicode support
- Euro currency symbol support
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Planning Information
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Customer Responsibilities
Not applicable.
Compatibility
Applications from Earlier AIX V5 Releases
AIX 5L V5.1 applications written for RS/6000 POWER3-, POWER4-, and
PowerPC-based models can be executed on AIX 5L V5.2 without recompilation
for the same and newer models in that processor family (POWER3, POWER4,
or PowerPC). Exceptions are applications compiled using POWER3-, POWER4-
or PowerPC-specific compiler options but executed on models other than
POWER3, POWER4, or PowerPC, respectively, or applications using:
- Nonshared compiles of AIX-shared libraries
- Features explicitly described as nonportable by IBM in the AIX V4 or
V5 reference manuals
- Undocumented AIX internal features
- X11R5 Server Extensions
- Locales based on on IBM-850 codesets
Applications compiled on AIX V5.2 may not operate properly on systems
running any level of AIX V5.1.
Any program that must run in all environments -- POWER3, POWER4, and
PowerPC (601 and newer PowerPC processors) -- must be compiled using the
common mode or PowerPC option of the compiler. Programs compiled to
exploit POWER4 technology must be run on the same processor type.
Programs compiled to exploit POWER3 technology may be run on POWER3 or
POWER4 processor types, though there may be some performance penalty when
running on POWER4. Programs compiled to exploit PowerPC-based technology
must be run on PowerPC-based processors. Existing binaries need not be
recompiled to operate on the target processors.
32-bit Applications from AIX Version 4 Releases
AIX V4.1, 4.2, or 4.3 applications written for RS/6000 POWER3-,
POWER4-, and PowerPC-based models can be executed on AIX 5L V5 without
recompilation for same and newer models in that processor family (POWER3,
POWER4, or PowerPC). Exceptions are applications compiled using POWER3-,
POWER4-, or PowerPC-specific compiler options executed on models other
than POWER3, POWER4, or PowerPC, respectively, or applications using:
- Nonshared compiles of AIX shared libraries
- Features explicitly described as nonportable by IBM in the AIX V4 or
V5 reference manuals
- Undocumented AIX internal features
- X11R5 Server Extensions
- Locales based on on IBM-850 codesets
Applications compiled on AIX V5 may not operate properly on systems
running any level of AIX V4.
Any program that must run in all environments -- POWER3, POWER4, and
PowerPC (601 and newer PowerPC processors) -- must be compiled using the
common mode or PowerPC option of the compiler. Programs compiled to
exploit POWER4 technology must be run on the same processor type.
Programs compiled to exploit POWER3 technology may be run on POWER3 or
POWER4 processor types, though there may be some performance penalty when
running on POWER4. Programs compiled to exploit PowerPC-based technology
must be run on PowerPC-based processors. Existing binaries need not be
recompiled to operate on the target processors.
AIX V5 Binary Compatibility -- 64-Bit Applications from AIX V4
Releases
Any 64-bit applications produced using AIX V4 will not execute on AIX
V5. These applications need to be recompiled from the source on AIX V5
to execute on this version of AIX. The 64-bit applications produced
using AIX V5 on any of the 32-bit or 64-bit processor models will execute
without recompilation on the 64-bit processor models. The 32-bit
applications produced using AIX V5 on either 32-bit or 64-bit processor
models will execute without recompilation on both models.
X11R5/X11R6 Compatibility Issues On AIX V5
The AIX V5 X-server uses the X-Consortium release 6 of X (commonly
known as X11R6). The libraries shipped by IBM with X11R6 are backward-
compatible and the client applications that access these libraries work
as on AIX V4.
As on AIX V4, IBM will also ship X11R3, X11R4, X11R5 compatibility
installation options for maximum flexibility.
The majority of applications using X fall into this category and will
not cause any difficulty. However, a small number of X-applications use
the loadable extension facility provided by the X-server.
The X-server allows for the addition of new functionality through its
extension mechanism. For each extension, part of the extension is loaded
into the X-server before it can be executed. X11R6 has modified how this
mechanism works in the course of improvements to X, and it is this part
of the extension that must be made compatible with X11R6 to execute
properly.
All extensions supplied by IBM have been made compatible. In some
circumstances, you may have an extension that does not work with X11R6;
for example:
- Sample extension downloaded from the X-Consortium FTP site
- Customer-developed extension
- Third-party extension
In these cases, the extension needs to be made compatible with X11R6
before it executes properly. Customer-developed extensions and sample
X-consortium extensions need to be recompiled with the X11R6 environment.
For third-party extensions, contact the vendor for a X11R6-compatible
update.
If you use non-IBM display adapters, you may also be using vendor
supplied software specific to those devices that uses X11R6 server
capabilities. If so, this software must be compatible with X11R6 to
operate properly. Contact the vendor of the display adapter for this
software.
IBM plans to provide a porting guide with AIX V5 to assist customers
and vendors who develop adapters or extensions for AIX.
From AIX V3 to V5
All AIX applications using AIX V3R3.2 or later, for POWER-, POWER2-,
and PowerPC-based models that are written in accordance with these
guidelines and other AIX guidelines, run on AIX V5 without recompilation
for those same models. The exceptions to this statement would be
applications compiled using POWER2-or PowerPC-specific compiler options
but run on models other than POWER2 or PowerPC, or applications using the
following:
- Their own loadable kernel extensions
- Certain high-function terminal control interfaces
- X11R3 input device interfaces
- CIO LAN device driver interface
- SCSI device configuration methods (IHVs)
- The nlist() interface
- DCE threads
Applications created on a system using AIX V5 may not function
properly on a system using AIX V3. Applications must have been created
using the AIX shared libraries for these binary compatibility statements
to apply.
Limitations
AIX V5.2 is not supported on the IBM RS/6000 SP system at this time,
nor on any PSSP-based cluster of servers.
AIX Developer Kit, Java Technology Edition, V1.1.8 and AIX Developer
Kit, Java 2 Technology Edition, V1.3.0 are not supported on AIX V5.2.
Performance Considerations
From AIX V5.1 to V5.2
AIX V5.1 applications written for RS/6000 POWER3-, POWER4-, and
PowerPC-based models can be executed on AIX 5L V5.2 without recompilation
for same and newer models in that processor family (POWER3, POWER4, or
PowerPC). The exceptions to this statement would be applications
compiled using POWER3-, POWER4-, or PowerPC-specific compiler options but
executed on models other than POWER3, POWER4, or PowerPC, respectively,
or applications using:
- Nonshared compiles of AIX shared libraries
- Features explicitly described as non portable by IBM in the AIX V4 or
V5 reference manuals
- Undocumented AIX internal features
- X11R5 Server Extensions
- Locales based on IBM-850 code set
Applications compiled on AIX V5.2 will not operate properly on systems
running any level of AIX V5.1.
Any program that must run in all environments -- POWER3, POWER4, and
PowerPC (601 and newer PowerPC processors) -- must be compiled using the
common mode or
PowerPC option of the compiler. Programs compiled to exploit POWER4
technology must be run on the same processor type. Programs compiled to
exploit POWER3 technology may be run on POWER3 or POWER4 processor types,
though there may be some performance penalty when running on POWER4.
Programs compiled to exploit PowerPC-based technology must be run on
PowerPC-based processors. Existing binaries need not be recompiled to
operate on the target processors.
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Publications
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The following publications can be ordered from IBM immediately. To
order, contact your IBM representative.
- AIX 5L Version 5.2 Operating System Installation: Getting Started
(SC23-4388)
- AIX 5L Version 5.2 AIX Installation in a Partitioned Environment
(SC23-4382)
- AIX 5L Version 5.2 Installation Guide and Reference (SC23-4389)
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Security, Auditability, and Control
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AIX 5L for POWER V5.2 uses the system and network security features
for security and auditability. These features are:
- System security:
- Native Kerberos V5 KDC Server/Client Support
- Trusted Computing Base available as an optional preinstall feature
- AIX LDAP Security Audit plug-in
- Pluggable Authentication Mechanism
- IBM SecureWay Directory Version 3.2.1
- Network security:
- PKCS support
- IP Key Encryption Security
- Directory-based resolvers
The customer is responsible for evaluation, selection, and
implementation of security features, administrative procedures, and
appropriate controls in application systems and communication facilities.
Trademarks
(R), (TM), * Trademark or registered trademark of
International Business Machines Corporation.
** Company, product, or service name may be a trademark
or service mark of others.
Windows is a trademark of Microsoft Corporation.
UNIX is a registered trademark in the United States and other
countries licensed exclusively through X/Open Company Limited.
© IBM Corporation 2005.
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Operating Environment