Powerful Blade-thin Computing

The IBM eServer BladeCenter chassis and IBM eServer BladeCenter JS20 blade servers are key components to building your blade configuration. Optionally available Ethernet and Fibre Channel switches support advanced configurations. Additional information on BladeCenter and related options is available from the following Web site:

http://www.ibm.com/pc/support

JS20 blade - Performance and scalability

• Two 2.2 GHz PowerPC 970 processors with full-speed 512 KB ECC L2 cache

• Larger on-blade storage with ATA-100 IDE controller for up to two 40 GB or 60GB IDE HDDs

• Support for SUSE Linux SLES 8 SLES 9

• Support for Red Hat Enterprise Linux V3

• Support for AIX 5L V5.2 and V5.3:

  • JS20 blades with AIX 5L V5.2 or AIX 5L V5.3 are now considered an Express/Value Option (5765-E62, Feature Number 0009)

• Support for IBM XL C/C++ Advanced Edition V7.0 for Linux and IBM XL Fortran Advanced Edition V9.1 for Linux to enable VMX

System Management for the BladeCenter JS20 is supported through Cluster Systems Management (CSM) for Linux V1.4 on Red Hat Enterprise Linux AS for POWER V3 or SUSE Linux Enterprise Server 8, or later.

High-Performance Blade-server Subsystems

The JS20 blades are high-throughput, two-way, SMP POWER Technology blade servers, highly scalable by adding memory. Two processors are supported per blade, directly mounted to the blade planar board, providing multiprocessing capability. Each processor includes 32/64 KB L1(Data/Instruction) and 512 KB L2 cache.

High-speed, PC2700 DDR SDRAM is synchronized for up to 333 processor-to-memory subsystem performance with current processors.

The memory controller provides:

• Two elastic interfaces for the processors
• A DDR SDRAM memory interface to 4 DIMM sockets
• A HyperTransport channel

Attached to the HyperTransport channel is the I/O controller which includes:

• Two IDE channels
• Six USB channels

Additional components of the JS20 blade subsystem are:

• Ethernet controller
• PCI-X daughter card

Standard JS20 blade configurations

 ______________________________________________________________
| Models   Processor  L2 Cache  Memory     Ethernet      HDD   |
| -------- ---------  --------  ---------- ------------  ----  |
| 8842-41X 2-way      512 KB    512 MB ECC Dual Gigabit  Open  |
|          2.2 GHz                                             |
|          PPC 970                                             |
|______________________________________________________________|

Optional/Additional features

• Memory, up to 4 GB of system memory is supported:
  • The JS20 system board contains four DIMM memory connectors
  • Memory is two-way interleaved (must be installed in matched pairs)
  • 512 MB memory DIMM (73P2275)
  • 1 GB memory DIMM (73P2276)
  • Memory sizes can be mixed

• Dual-channel EIDE (ATA-100) controller, supporting economical EIDE data storage up to 120 GB (two 60 GB HDDs)

• Two full-duplex, dual Gigabit Ethernet PCI connections, high-speed network communications to LAN clients

The PPC 970 SIMD instructions provide exceptional performance for selected compute-intensive applications. This makes the JS20 blade an excellent choice for applications in:

• Bioinformatics
• Seismic Processing
• Digital Signal Processing
• Financial Services

JS20 blades are designed for high throughput, from processor to memory and bus I/O. These features, combined with SMP capability and blade-thin density, make it an excellent choice for space-constrained environments used for:

• Collaboration
• Terminal serving
• Dynamic Web serving
• Scientific and technical computing
• Linux clustering
• File and print serving
• e-mail
• AIX Server Consolidation

High-Availability and Serviceability Features

JS20 blades deliver on reliability and serviceability. Features include:

• ECC DIMMs, combined with an integrated ECC memory controller, correct soft and hard single-bit memory errors, while minimizing disruption of service to LAN clients

• Memory hardware scrubbing, designed to automatically correct soft memory errors without software intervention

• ECC L2 cache processors help improve data reliability and reduce downtime

• SAN boot using JS20 Fibre Channel Daughter Card

• Dual Gigabit Ethernet connections support:
  • Failover, adapter fault tolerance
  • Open Firmware/bootp
  • Wake on LAN
  • Load balancing or teaming

• First Failure Data Capture (FFDC):
  • Collects information about system state in special registers
  • Uses that information to identify failing component
  • Eliminates most of the requirement to use diagnostic programs to identify failures

• CPU failure recovery in SMP configurations:
  • Forces failed processor offline
  • Automatically reboots server
  • Generates alerts
  • Continues operations with the working processor

• An integrated management processor supports diagnostic, reset, POST, and auto recovery functions and monitors temperature and voltage; alerts generated when thresholds are exceeded (refer to the Limitations section for restrictions)

Systems management

IBM Director V4.12 and V4.2

JS20 blades feature IBM Director V4.12 and V4.2 which must be downloaded from the following Web site:

http://www-3.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-53168

The IBM Director V4.12 supports the following functions on the JS20 blade:

• Events
• Resource Monitoring
• Inventory (limited)
• Remote Session
• Software Distribution
• File Transfer
• Process Management
• MPA

IBM CLUSTERS SYSTEMS MANAGEMENT (CSM) FOR LINUX V1.4

CSM (5765-G16) provides a full suite of systems management software for the JS20 including:

• Hardware control
• Install and update software on nodes
• Distributed command execution
• File synchronization across cluster
• Monitoring and automated response
• Automatic security configuration
• Management of node groups (static and dynamic)
• Diagnostics tools

More information on Cluster Systems Management can be found at:

http://www-1.ibm.com/servers/eserver/clusters/software/

CSM/IBM Director positioning: The IBM Director product is focused on the Windows or Windows/Linux combined customer who wants to use a graphical interface for their systems management. Director offers deeper blade hardware discovery and configuration capabilities.

Cluster Systems Management is recommended for managing UNIX-only clusters (Linux or AIX) when the customer prefers a scripting interface to perform cluster management tasks. CSM provides full installation for Linux and a flexible command line interface.

BladeCenter Management Module

Use the management module in the BladeCenter to manage the BladeCenter and obtain vital system information about your installed JS20 blade servers. The management module communicates with the blade servers within the BladeCenter via an RS-485 intermanagement network. This network relays vital information about individual blade servers such as:

• Temperature
• Voltages
• Power supply status
• Memory status
• Fan status
• HDD status
• Error and status log

You can receive the status and you can control all blade servers within the BladeCenter. You can shut down and restart any blade server from anywhere on the network to help save time and costs associated with travel to the actual installation.

These manageability functions are provided through a self-contained Web page, creating an easy and familiar way for administrators to monitor, control, and maintain highly available BladeCenter installations. The Management Module communicates to the JS20 blades through serial-over-LAN interface.

Configurator Information

The following configurator aids are available:

• To order the hardware and Linux operating systems use:
  • xSeries and IntelliStation Sales Configuration Aid

• To order the AIX operating system use:
  • ECFGRS6000 (e-Config)

In e-Config this is done using pSeries and RS/6000 Software order, and selecting 8842-41X under the Server Model.
Back to top
 

Product Positioning

The BladeCenter offerings are positioned as the highest-density servers of the IBM eServer line. They represent a new approach to the deployment of application servers where two-way, SMP processing, high-availability design, systems management, and easy setup features are combined in a dense package. The JS20 blade is positioned within the POWER product set as the lowest priced two-way POWER-based server from IBM. The BladeCenter packaging with minimal use of power and maximal server density allows the JS20 to offer exceptionally low cost of operation. The common set of management tools with the rest of the BladeCenter product family helps reduce the management cost of the JS20. This combination is designed to give the JS20 exceptional total cost of ownership. The PPC 970 is also the only POWER processor from IBM to have SIMD instructions. This enhancement to the instruction set makes the PPC 970 one of the preferred choices for applications that can exploit this increased parallelism. The JS20 blade is positioned within the BladeCenter family as the IBM 64-bit processor blade server option. This provides a performance advantage for floating point data-intensive applications as well as the applications that exploit the SIMD capability. With enhanced processor speed, the JS20 is a low cost alternative for file/print serving, Web serving, and commercial e-mail applications that run on either Linux or AIX. The BladeCenter, in just 7 U of rack space, contains up to 14 blade servers and provides the necessary I/O network switching, power, cooling, and control panel information to support these individual servers. When compared to 1 U high servers, the BladeCenter can support twice the number of processors in the same rack space. The BladeCenter and JS20 blade requires less space and power resources because of the high-density design, reduced power requirements, and single environment systems management. This is an important consideration for: Large enterprises Small and medium business Application service providers Scientific and technical computing businesses Government They are an excellent fit for applications such as: Bioinformatics Proteomics Seismic Processing Digital imaging Financial Services Collaboration Terminal Serving File and print serving Static and Dynamic Web Serving Scientific and Technical Computing Linux and AIX clusters This JS20 blade offering enhances the BladeCenter line and offers customers a POWER-based alternative. Back to top   Models Model Summary Matrix Model Processor L2 Cache Memory Ethernet HDD 41X 2-way 2.2 GHz PPC 970 512 KB 512 MB ECC Dual Gigabit Open Maximum Two processors are supported per blade. Customer Setup (CSU) Yes. Devices Supported The IBM JS20 blade (model 41X) is designed to maintain compatibility with the following IBM products. As a part of the ServerProven program, compatibility listings are updated on the Web. Detailed information relative to IBM and non-IBM vendor devices, adapters, software and network operating systems supported with xSeries servers can be accessed via the Web: http://www.ibm.com/pc/us/compat Description Number ---------------------------------------- ------- BladeCenter (model 8842-21X) 884221X System Memory IBM 512MB PC2700 CL2.5 ECC DDR RDIMM 73P2275 IBM 1GB PC2700 CL2.5 ECC DDR RDIMM 73P2276 Fixed Disks / Diskette Drives / Storage IBM 40 GB IDE Disk Drive 48P7063 IBM 60 GB IDE Disk Drive 25R6904 IBM FAStT600 Storage Server(2) 172260U IBM FAStT600 Storage Server (EMEA) 172260X IBM FAStT900 Storage Server 174290U IBM FAStT900 Storage Server (EMEA) 174290X IBM FAStT500 Storage Server 35521RU IBM FAStT500 Mini Hub 00N6882 IBM FAStT500 256Mb Cache 00N6883 IBM FAStT EXP500 Storage Expansion Unit(2) 35601RU IBM FAStT EXP500 Storage Expansion Unit(2) (EMEA) 35601RX IBM FAStT EXP200 Storage Expansion Unit(2) 35421RU IBM FAStT EXP200 Storage Expansion Unit(2) (EMEA) 35421RX IBM FAStT EXP700 Storage Expansion Unit(2) 17401RU IBM FAStT EXP700 Storage Expansion Unit(2) (EMEA) 17401RX IBM FAStT EXP200 Redundant Raid Controller 19K1121 IBM FAStT EXP200 HA Storage Server(2) 35422RU IBM FAStT EXP200 HA Storage Server(2) (EMEA) 35422RX IBM Enterprise Storage Server Model 800 2105800 IBM Enterprise Storage Server Model 800 Turbo 2105800 Turbo IBM Enterprise Storage Server 2105F20 IBM NAS 100, 5190 Model R12 5190R12 IBM Ultrium Ultra Scalable Tape Library 3584L32/D32 Network Attached Storage 200 Model 25T 519425T Network Attached Storage 300 Model 326 5195326 Network Attached Storage 300G Model G27 5196G27 IBM BladeCenter Optical Pass-thru Module 02R9080 IBM FAStT700 Storage Server 17421RU IBM FAStT700 Storage Server (EMEA) 17421RX IBM FAStT700 Mini Hub 19K1269   Note: (2) Must be attached to a supported FC expansion card and switch module. Communications IBM JS20 Fibre Channel Daughter Card 73P6112 Myrinet Cluster Expansion Card for IBM eServer 73P6000 IBM BladeCenter Gb Ethernet Expansion Card 73P9030 IBM SAN Fibre Channel Brocade Switch, 16-Port 2109F16 IBM SAN Fibre Channel Switch 3534 Model F08 3534F08 IBM BladeCenter 2-Port Fibre Channel Switch Module 48P7062 IBM BladeCenter 4-Port Gb Ethernet Switch Module 48P7054 Nortel Ethernet Switch Module 73P9057 McData Spheron 3032 Fabric Switch (32-port) 2031032 McData Spheron 3216 Fabric Switch (16-port) 2031216 McData Spheron 3232 Fabric Switch (32-port) 2031232 McData Intrepid 6064 Director Switch 1GB (64-port) 2032064 McData Intrepid 6064 Director Switch 2GB (64-port) 2032064 McData Intrepid 6140 Director Switch 1GB (140-port) 2032140 Miscellaneous Cables For Chassis Netfinity Fibre Channel 1 M Cable 36L9973 LC-LC Fibre Channel Cable - 25M 19K1249 Short Wave SFP Module 19K1271 LC-LC Fibre Channel Cable - 1M 19K1247 LC-LC Fibre Channel Cable - 5M 19K1248 Netfinity Fibre Channel 25M cable 03P9305 LC-SC Fibre Channel Cable Adapter 19K1250 Long Wave SPF Module 19K1272 NetVista USB - Parallel Printer Cable 19K4164 USB to Serial Cable 10K3661 Cisco MDS 9120 Multilayer Fabric Switch 2061020 Cisco MDS 9140 Multilayer Fabric Switch 2061040 Cisco MDS 9216 Multilayer Fabric Switch model 2062D01 Cisco MDS 9506 Multilayer Fabric Switch model 2062D04/T04 Cisco MDS 9509 Multilayer Fabric Switch model 2062D07/T07 Other Devices For Chassis BladeCenter Acoustic Attenuation Module 49P2694 NetBAY42 Enterprise Rack 930842S NetBAY42 Enterprise Rack Expansion Cabinet 930842E NetBAY42 Standard Rack Cabinet 9306420 NetBAY42 Standard Expansion Rack Cabinet 9306421 NetBAY25 Standard Rack Cabinet 9306250 NetBay11 Standard Rack Cabinet 9306110 NetBAY Rack Power Distribution Unit 37L6866 BladeCenter 1800W Power Supply Modules 74P4401 NetBAY Local Console Manager (LCM) 1735L04 NetBAY Remote Console Manager (RCM) 1735R16 IBM Two-Button Mouse 90P0740 IBM 84-key Space Saver Cost Reduced Keyboard 28L3644 IBM Preferred Pro Full-Size Keyboard - 104 Key 25R6968 (business black)   Qlogic(**) iSCSI Expansion Card for IBM eServer BladeCenter 26K6487   Model Conversions None. Back to top   Technical Description Physical Specifications Operating Environment Limitations Hardware Requirements Software Requirements The JS20 blade is a high-density design blade server that is installed into the BladeCenter. This hot-swap blade server includes the following features: A 2.2 GHz POWER4-based two processor model with 512 KB full-speed cache and 1.1 GHz quad-pumped FSB: 512 MB of PC2700 DDR SDRAM support - 4 GB per blade server using 4 x 1 GB DIMMs Dual Broadcom Gigabit Ethernet connections Management processor Network card connector - Supports optional Fiber Channel Expansion Card and additional Ethernet cards IDE controller Two IDE HDD connectors - Install one or two optional 40 GB or 60 GB ATA-100 HDDs JS20 blade Model Configurations Xeon L2 ECC IDE Model Processor Cache Memory HDD Interface Ethernet -------- --------- ------ ------ ---- ------------ ------------ 8842-41X 2.2 GHz(1)512 KB 512 MB open Dual ATA-100 Dual Gigabit By combining a BladeCenter and up to 14 JS20 blade blades, extremely high-density configurations can be deployed to address large enterprise or application service providers needs for powerful, high density, high availability servers. This approach allows twice the processors, memory, and network connections to be made than that of the current 1 U-high xSeries 335. Note: (1) The processor GHz speed is the internal processor speed. External processor operations to system memory and to the PCI bus controller run at up to 1.1 GHz. Physical Specifications IBM eServer BladeCenter JS20 8842-41X ----------------- Processor - 2-way PowerPC 970 Int. speed - 2.2GHz Number standard - 2 Maximum - 2 L2 cache (full speed) 512 KB Memory (PC2700 DDR) 512 MB ECC DIMMs - 2x256 MB DIMM sockets - 4 Capacity - 4 GB(1) Video - Not supported IDE controller - ATA-100 Channels - 2 Connector int. - 2 Connector ext. - 0 HDD - 0 Connectors - 2 Internal capacity - 120 GB(2) Total HDD bays - 0 PCI Slots - 1 Management proc. - Standard Ethernet controller - Dual Gigabit FC card - Optional CD-ROM (IDE) - 0 Diskette drive - 0 Power supply - 0 Note: (1) Total system memory capacity is based on using 1 GB memory DIMMs. Note: (2) Capacities are based on installation of two 60 GB IDE HDDs. For latest information on supported HDD options, visit: http://www.ibm.com/pc/us/compat Electrical 200-240 (nominal) V AC; 50 Hz or 60 Hz; Standards The IBM eServer BladeCenter JS20 supports or complies with the following standards: Equipment Approvals and Safety FCC - Verified to comply with Part 15 of the FCC Rules, Class A Canada ICES-003, issue 3, Class A UL 1950(1) CSA C22.2 No. 950 Note: (1) This server is certified by the respective UL agencies. Operating Environment Temperature: 10.0 to 35.0 degrees C (50 to 95 degrees F) at 0 to 914 m (0 to 3,000 ft) 10.0 to 32.0 degrees C (50 to 90 degrees F) at 914 to 2,133 m (3,000 to 7,000 ft) Relative humidity: 8% to 80% Maximum altitude: 2,133 m (7,000 ft) Limitations The JS20 BladeCenter blades contain four DIMM sockets. A maximum of 4 GB of system memory is supported by adding a 1 GB PC2700 CL2.5 ECC DDR SDRAM DIMM in each of the 4 DIMM sockets. All supported system memory is addressable through direct memory access. The JS20 blade supports currently available 512 MB, and 1 GB DIMM base system memory and options. Supported DIMMs can coexist in the same server; however, memory DIMMs of the same capacity must be installed in matched pairs. Refer to the xSeries server Web page memory options. The BladeCenter (8677-1XX/2XX/3XX) supports a mix of JS20 and HS20 blades. A Keyboard/video/mouse is not supported on the JS20. The console select button is also not supported on the JS20 blade. Direct connections should be made using Serial over LAN The second IDE connector supporting an IDE HDD cannot be used when a HS20 Fibre Expansion card or BladeCenter Gigabit Ethernet Expansion Card is installed due to mechanical reasons. Two 2000-watt power modules are in the 8677-3XX BladeCenter. There is support for two optional 2000-watt power modules for redundancy and robust configurations. Processor Blades 1 to 6 receive their power from power modules 1 and 2. Processor Blades 7 to 14 receive their power from power modules 3 and 4. If a JS20 blade is being installed in the 8677-1XX or 8677-2XX Blade Center, part number 59P6598 titled "IBM eServer BladeCenter Power Module Upgrade Guidelines" will contain a table identifying the power load factor of all possible blades. If your blade center was shipped before June, 2003; check the following items: An update to the customer interface card on the media tray may be required for proper CD-ROM operation with the JS20 blade. To determine the part number of your existing media tray, from the management module Web interface, under the heading "Monitors" in the left hand column, select Hardware VPD and then look at the Module Name "media tray". If the FRU number of the media tray in your blade center is 59P6629, call your hardware support center and request a free replacement media tray. Power modules may need to be upgraded to handle the additional power requirements. The following link can assist you to determine if an upgrade is required: http://www.pc.ibm.com/us/eserver/xseries/pdf/COGdec2003-US.pdf To prevent problems at installation, order any required upgrades along with the JS20. The level of the ethernet switch module firmware must be at level 81 or higher. To determine the revision level of your existing firmware, from the management module Web interface, under the heading "Monitors" in the left hand column, select Firmware VPD, then in the table for "I/O Module Firmware VPD" look for the Revision number of the "Main Application 1" for the selected ethernet switch module. If you need new firmware, the latest level is available for download from the Internet at: www-306.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-50457 BladeCenter JS20: Serial over LAN (SOL) is required to perform local or network operating system or software installation on the JS20 blade server. SOL communication requires a supported Gb Ethernet Switch Module to be installed in switch module bay 1 of the IBM eServer BladeCenter chassis. If ethernet booting is employed by the user, a second supported Gb Ethernet Switch Module must also be installed. The BladeCenter JS20 does not support the KVM function that is standard with the Management Module. The serial over LAN capability of the Management Module is used on the JS20 as an alternative to the functionality provided by the KVM feature. BladeCenter chassis: When using Serial over LAN (SOL) for operating system or software installation (required for the JS20; optional for the HS20, or HS40), a supported Gb Ethernet Switch Module is required in switch module bay 1 of the IBM eServer BladeCenter chassis. If ethernet booting is employed by the user, a second supported Gb Ethernet Switch Module must also be installed. Refer to the Software Requirements section for operating system limitations. Hardware Requirements Not applicable. Software Requirements Software Compatibility The following software products have been tested by IBM and software publishers in the latest available versions, and where appropriate, are certified by the publisher to be compatible with the JS20 blade. OPERATING SYSTEMS Software Publisher Description ------------------ -------------------------------------------------- Linux - SUSE Linux Enterprise Server 8 (Service Pack 3) - (UL 1.0 Based) - SUSE Linux Enterprise Server 9 for POWER - Red Hat Enterprise Linux AS for POWER, Version 3 APPLICATION SOFTWARE Software Publisher Description ------------------ ------------------------------------ IBM Director V4.12 Lotus Lotus/Domino Mail Server R6.0.1 IBM SMA 3.1 System Migration Assoc. v3.1   The following network operating systems have been tested for compatibility with the JS20 blade: AIX: AIX 5L Version 5.2 with the 5200-05 Recommended Maintenance package (APAR IY66260) or later AIX 5L Version 5.3 with the 5300-01 Recommended Maintenance package (APAR IY62267) or later Linux: SUSE Linux Enterprise Server 8, SP3A for POWER, or later SUSE Linux Enterprise Server 9 Red Hat Enterprise Linux AS for POWER Version 3 For additional information support, certification, and version information on network operating systems, access: http://www.ibm.com/pc/us/compat Back to top   Publications An installation and user's guide, safety, and warranty publications are shipped with each JS20 blade. Back to top   Features -- Specify/Special/Exchange No Charge Specify Codes Special Feature Codes -- Chargeable Feature Exchanges No Charge Specify Codes None. Special Feature Codes -- Chargeable Order Description Machine Models Number -------------------- ---------- -------- ------ BladeCenter JS20 8842 41X 884241X   Additional Features JS20 blade system board containing four DIMM connectors, supporting 256 MB, 512 MB, or 1 GB DIMM options: Up to 4 GB of system memory is supported. Dual-channel EIDE (ATA-100) controller, EIDE data storage up to 120 GB (two 60 GB HDDs) Two full-duplex, dual Gigabit Ethernet PCI connections Feature Exchanges Not available. Back to top   Accessories None. Customer Replacement Parts None. Back to top   Machine Elements None. Back to top   Supplies None. Diskettes None. 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. Back to top