IBM manual 28RS/6000 SP SP Switch Service Guide

Page 48

SP Switch function (MAP 0620)

Step 0620-013

An SRN listed in Table 1-9 on page 1-24indicated that you have a switch clock problem and Priority 2 in Table 1-10 on page 1-27directed you to this step.

1.Check the switch clock selections on the ªproblemº switches .

2.Do the clock settings on the ªproblemº SP Switches appear to be okay?

vIf yes, go to ªStep 0620-014º.

vIf no

a.Change the clock selections on the appropriate switches (refer to ªSelecting appropriate switch clocksº on page 3-6).

b.Go to ªStep 0620-043º on page 1-36 to verify fix.

Step 0620-014

The clock settings on the ªproblemº SP Switches appear to be okay.

1.Is an external clock selected?

v If yes, go to ªStep 0620-016º.

vIf no, go to ªStep 0620-015º.

Step 0620-015

An external clock is not selected. This indicates that you have a defective master clock card.

1.Is this the only switch in this system? v If yes:

a.Replace the switch assembly.

b.Go to ªStep 0620-043º on page 1-36 to verify fix.

vIf this is not the only switch in this system, go to ªStep 0620-016º.

Step 0620-016

The system you are working on either has an external clock or the system uses more than one switch.

1.Have the customer select an alternate clock (via the Eclock command.

2.Issue the Estart command.

3.Does the switch run?

v If yes, go to ªStep 0620-018º.

vIf no:

a.Replace the switch assembly.

b.Go to ªStep 0620-043º on page 1-36 to verify fix.

Step 0620-017

An SRN listed in Table 1-9 on page 1-24indicated that you have a software problem and Priority 1 in Table 1-10 on page 1-27directed you to this step.

1.From the node front panel on the control workstation, put the node in the SERVICE mode.

2.Power-on this processor node.

3.Go to ªStep 0620-018º.

Step 0620-018

At this point, you must run the advanced diagnostics in service mode on the device ªcss0º and its associated switch port.

1.Did you get an SRN from the diagnostics?

v If yes, go to ªStep 0620-020º on page 1-29.

v If no, go to ªStep 0620-019º on page 1-29.

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Contents IBM Page IBM Fifth Edition April Contents FRU removals and replacements Figures Vi RS/6000 SP SP Switch Service Guide Tables ViiViii RS/6000 SP SP Switch Service Guide Safety and environmental notices Safety noticesRS/6000 SP SP Switch Service Guide SPSFD017 Xii RS/6000 SP SP Switch Service Guide Laser safety information Environmental notices Product recycling and disposalXiv RS/6000 SP SP Switch Service Guide About this book Who should use this bookRelated information How to send your comments Summary of changes Xviii RS/6000 SP SP Switch Service Guide Maintenance Analysis Procedures MAPs Switch description and problem determination MAP Power Green Environment YellowFlashing Errors in /var/adm/SPlogs/css/out.top see Priority Message or condition ActionSP Switch environment MAP Condition ActionSwitch connector resistance values Step SP Switch inner chassis and front chassis cables Priority Component ActionStep 10RS/6000 SP SP Switch Service Guide Step 12RS/6000 SP SP Switch Service Guide SP Switch power MAP SP Switch power MAP PDU-BH-P1 PDU-BH-P2 PDU-BH-P3 PDU-BH-P4 PDU-BH-P5 From From P1 pinSP Switch function MAP EstartEprimary Splstdata -n pg Pg /var/adm/SPlogs/css/out.top NotesSP Switch function MAP Error # Message/condition Description and action If the cabling does not match, correct the cablingSplstdata -s pg SDRGetObjects DependentNodeL01-S00-BH-J18 E02-S00-BH-J18L03-N01 E02-N04Priority Message/condition Action Var/adm/SPlogs/css/out.top file haveStep Service Request Number Failing components DescriptionSRN 26RS/6000 SP SP Switch Service Guide Priority Failing component Action 28RS/6000 SP SP Switch Service Guide Step 30RS/6000 SP SP Switch Service Guide Estart Do not perform the cable wrap test Step Do not perform cable wrap test Step Check /var/adm/SPlogs/css/out.top file Locations Naming standard for RS/6000 SP componentsFormat structure Location diagrams of the RS/6000 SP components Major assemblyFront and rear views of RS/6000 SP frame Figure notes2shows a front view of the RS/6000 SP multi-switch frame Front view of 49-inch frame locations. See notes below Frame locations Frame FRAExample E01-FRA-G1 Switch assembly locations Air BaffleConnector details Cable routing10RS/6000 SP SP Switch Service Guide Cable routing in a multi-switch frame F/C 2030/1 12RS/6000 SP SP Switch Service Guide Switch data cables Cable Part Plug from Plug to Number Location14RS/6000 SP SP Switch Service Guide Service procedures Personal ESD requirementsTools and files overview Utility see note Runs on Description FaultserviceWormRTG Rc.switchIfconfig File see note Location Description Rc.switch.logUsing the css.snap script Switch supervisor self-test Verification tests using PerspectivesNode supervisor verification Self-test Conditions Pass sequenceSwitch supervisor verification Frame supervisor verificationSelecting appropriate switch clocks Selecting the switch clock sourceDetermining the correct switch clock source EclockRemoving and restoring switch resources Removing a switch assembly from the active configurationNumber of Logical Master Clock Choice Model Frames Restoring a switch assembly to the active configuration Viewing switch partitionsReplacing a switch assembly from service position Resetting the clock and bootlist after servicing a nodeEfence of primary and primary backup nodes Installing firmware updates on SP nodes Installing adapter microcode packagesAdapter Package Running diagnostics on a switch port FRU removals and replacements Handling static-sensitive devicesProcedures for switch assemblies Removing the switch assemblyReplacing the switch assembly Removing the switch fans Replacing the switch fansRemoving the switch front chassis cable Replacing the switch front chassis cable Removing the switch supervisor cardReplacing the switch supervisor card Removing the switch inner chassis cableReplacing the switch inner chassis cable Removing the switch power cardsReplacing the switch power cards Removing the SP Switch power supply cards8RS/6000 SP SP Switch Service Guide Parts catalog SPS, SPS-8 Switch assembly feature view Assembly Part number Units Description Index 4RS/6000 SP SP Switch Service Guide Inner chassis assembly SPS includes all assembly in shaded Air flow Cable, front chassis Switch cables feature SP Switch Data Cables SPS-8SP Switch External Cables SPS SPS-8 Parts catalog Multi-switch frame F/C 2030/1 Multi-switch frame F/C 2030/1 12RS/6000 SP SP Switch Service Guide Trademarks United Kingdom telecommunications safety requirements European Union EU statementIndustry Canada compliance statement For installations in Japan Electromagnetic interference EMI statement TaiwanRadio protection for Germany 4RS/6000 SP SP Switch Service Guide Index Numerics ESD Switch inner chassis cable, SPS Switch partitioning 4RS/6000 SP SP Switch Service Guide Readers comments ± Wed like to hear from you How satisfied are you that the information in this book isPlease tell us how we can improve this book IBM Page IBM
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RS/6000 SP specifications

The IBM RS/6000 SP (Scalable Power) is a high-performance computing system that was developed in the early 1990s and has since become a significant player in the realm of supercomputing and enterprise solutions. Designed primarily for scientific, engineering, and complex data analysis tasks, the RS/6000 SP provides powerful processing capabilities, enhanced scalability, and features to support demanding applications.

One of the key characteristics of the RS/6000 SP is its modular architecture, which allows for the addition of multiple nodes. Each node is based on IBM's Power architecture, leveraging the RISC (Reduced Instruction Set Computing) design to achieve high throughput and efficiency. The system can support configurations ranging from a few nodes to hundreds, enabling organizations to scale their computational power as needed based on workload requirements.

The RS/6000 SP employs advanced interconnect technologies, most notably the SP Switch, which ensures high-speed communication between nodes. This interconnect allows for seamless data transfer, ensuring that the system can handle large datasets and complex computations without bottlenecks. The SP's ability to deliver concurrent processing capabilities makes it ideal for parallel computing tasks, including simulations, modeling, and large-scale computations.

In terms of software, the RS/6000 SP was equipped with AIX, IBM's version of the UNIX operating system, which provides a stable and secure environment for enterprise applications. Furthermore, the system supports a vast array of programming languages and tools, including Fortran, C, and C++, along with libraries and frameworks designed for high-performance computing. This compatibility allows developers to optimize their applications to fully utilize the underlying hardware.

Another notable feature of the RS/6000 SP is its extensive support for various workloads, including database management, multi-user applications, and graphical processing. The system was equipped with high-performance graphics capabilities, making it suitable for tasks that require intensive visualization, such as computer-aided design (CAD) and scientific visualization.

Overall, the IBM RS/6000 SP has solidified its role in the high-performance computing landscape, combining advanced technologies, robust scalability, and flexibility to meet the unique demands of research and enterprise environments. Its legacy continues to influence modern computing architectures, embodying IBM’s commitment to innovation and performance in the pursuit of complex problem-solving capabilities.
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