IBM RS/6000 SP manual Do not perform the cable wrap test

Page 52

SP Switch function (MAP 0620)

vS00-BH-J9

5.Disconnect the switch data cable at the tailgate of the frame containing the processor node.

6.Connect the end of the processor node data cable to the jack.

7.Run advanced diagnostics on ªcss0º on the ªtestº processor node and its associated switch port.

vDo not perform the cable wrap test.

vRefer to ″Running diagnostics in a processor node″ in RS/6000 SP: System Service Guide.

8.Look for an SRN indicating a clock problem (such as ªExternal clockº).

9.Do the ªcss0º diagnostics fail with an indication of a clock problem?

vIf yes, go to ªStep 0620-031º.

vIf no, go to ªStep 0620-030º.

Step 0620-030

The ªcss0º diagnosticsdo not fail with an indication of a clock problem. This indicates that the problem is either in a cable or in the reported SP Switch.

1.Replace switch data cable that originally supplied the switch clock to the failing SP Switch.

2.Set the switch clock selection on this SP Switch to the original (correct) setting.

3.From the control workstation of the primary node reinitialize the switch by entering:

Estart

4.Check /var/adm/SPlogs/css/out.top file to see if problems are still reported on all data cables connected to this SP Switch.

5.Are there still problems reported on all data cables connected to this SP Switch? v If yes:

a.You have isolated the clock problem to the reported SP Switch.

b.Return to ªStep 0620-028º on page 1-31.

vIf no:

a.Clock problem resolved for this SP Switch.

b.Go to ªStep 0620-042º on page 1-35.

Step 0620-031

The ªcss0º diagnosticsfail with an indication of a clock problem. This indicates that there is a problem with switch clock source SP Switch.

1.Replace clock card in the clock source SP Switch.

2.Make sure to reconnect all cables connected to the clock card.

3.Set the switch clock selection on this SP Switch to the original (correct) setting.

4.Return to ªStep 0620-028º on page 1-31.

Step 0620-032

The clock settings on the problem switch appear to be okay and the problem switch is mounted in a frame that also contains processor nodes.

1.Check the ground straps connected to the ªproblemº frames.

v Ground straps are connected at bolts near the cable escapes inside the bottom rear of each frame.

vFor a view of a ground strap connection, refer to RS/6000 SP: Installation and Relocation.

2.Do all ground straps connecting the frames make adequate contact at both ends?

vIf yes, go to ªStep 0620-033º on page 1-33.

vIf no:

a.Fix or replace ground strap between the frames.

b.Go to ªStep 0620-043º on page 1-36.

1-32RS/6000 SP: SP Switch Service Guide

Page 51 Page 53
Image 52
Page 51 Page 53
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 Who should use this book About 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 Environment Yellow Power GreenFlashing 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 pinEstart SP Switch function MAPEprimary 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 Naming standard for RS/6000 SP components LocationsFormat 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 Personal ESD requirements Service proceduresTools 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 a switch assembly from the active configuration Removing and restoring switch resourcesNumber of Logical Master Clock Choice Model Frames Restoring a switch assembly to the active configuration Viewing switch partitionsResetting the clock and bootlist after servicing a node Replacing a switch assembly from service positionEfence 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 devicesRemoving the switch assembly Procedures for switch assembliesReplacing the switch assembly Replacing the switch fans Removing 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 SP Switch Data Cables SPS-8 Switch cables featureSP 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 European Union EU statement United Kingdom telecommunications safety requirementsIndustry Canada compliance statement Electromagnetic interference EMI statement Taiwan For installations in JapanRadio 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 How satisfied are you that the information in this book is Readers comments ± Wed like to hear from youPlease tell us how we can improve this book IBM Page IBM
Related manuals
Manual 108 pages 26.79 Kb

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.
Top Page Image Contents