IBM RS/6000 SP manual SP Switch function MAP, Estart, Eprimary

Page 37

SP Switch power (MAP 0610)

a.Replace the front chassis cable.

b.Return to ªStep 0610-004º on page 1-14 to verify the replacement cable. v If no:

a.Replace the circuit breaker.

b.Return to ªStep 0610-004º on page 1-14 to verify the replacement breaker.

Step 0610-013

You have continuity on all cables.

1.If this is the first time through this step, replace the supervisor card.

v Return to ªStep 0610-004º on page 1-14 to verify the replacement breaker.

vRefer to ªReplacing the switch supervisor cardº on page 4-5.

2.If this is the second time through this step, replace the switch inner chassis.

vReturn to ªStep 0610-004º on page 1-14 to verify the replacement breaker.

vRefer to ªProcedures for switch assembliesº on page 4-2.

3.If you have already replaced the supervisor card and the inner chassis, go to ″Open in 48 V dc distribution (MAP 0560)″ in RS/6000 SP: System Service Guide.

SP Switch function (MAP 0620)

Purpose of this MAP

This MAP provides diagnostic information for problems related to the SP Switch function.

Notes:

1.Refer to ªAppendix Aº inRS/6000 SP: Installation and Relocation for frame-to-frame or switch-to-switch cables. Logical frame to physical frame translation information can also be found in this appendix.

2.Refer to ªService position proceduresº on page 3-9 for placing or removing the switch into or from service position.

Step 0620-001

A message in Perspectives indicated that you have a switch function problem and Table 1-1 on page 1-4directed you to this MAP.

Note: If out.top does not match the physical switch configuration, run Eannotator. (Refer to Parallel System Support Programs for AIX: Installation and Migration Guide, GA22-7347.

1.To complete the following procedures, you will need to have primary node root access. (Customer may enter root password when required.)

2.If either of the following two conditions is true: v Estart has not been run by the customer

vThe CE has already replaced components that might affect the switch. then from the control workstation of the ªprimaryº processor node, enter:

Estart

You should receive a message indicating successful initialization at the primary node. If you receive any other message, consult the ªDiagnosing High Performance Switch Problemsº section ofIBM Parallel System Support Programs for AIX: Diagnosis Guide

3.Determine the primary node number. From an AIX® window on the control workstation, enter:

Eprimary

4.Determine the host name for this node by checking ªreliable_hostnameº for the node number with the command:

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-17

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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 Vii TablesViii RS/6000 SP SP Switch Service Guide Safety notices Safety and environmental noticesRS/6000 SP SP Switch Service Guide SPSFD017 Xii RS/6000 SP SP Switch Service Guide Environmental notices Product recycling and disposal Laser safety informationXiv 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 Priority Message or condition Action Errors in /var/adm/SPlogs/css/out.top seeCondition Action SP Switch environment MAPSwitch connector resistance values Step Priority Component Action SP Switch inner chassis and front chassis cablesStep 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 P1 pin FromEstart SP Switch function MAPEprimary Pg /var/adm/SPlogs/css/out.top Notes Splstdata -n pgSP Switch function MAP If the cabling does not match, correct the cabling Error # Message/condition Description and actionSplstdata -s pg SDRGetObjects DependentNodeE02-S00-BH-J18 L01-S00-BH-J18L03-N01 E02-N04Var/adm/SPlogs/css/out.top file have Priority Message/condition ActionStep Failing components Description Service Request NumberSRN 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 Major assembly Location diagrams of the RS/6000 SP componentsFigure notes Front and rear views of RS/6000 SP frame2shows a front view of the RS/6000 SP multi-switch frame Front view of 49-inch frame locations. See notes below Frame FRA Frame locationsExample E01-FRA-G1 Air Baffle Switch assembly locationsCable routing Connector details10RS/6000 SP SP Switch Service Guide Cable routing in a multi-switch frame F/C 2030/1 12RS/6000 SP SP Switch Service Guide Cable Part Plug from Plug to Number Location Switch data cables14RS/6000 SP SP Switch Service Guide Personal ESD requirements Service proceduresTools and files overview Rc.switch Utility see note Runs on Description FaultserviceWormRTGIfconfig File see note Location Description Rc.switch.logUsing the css.snap script Verification tests using Perspectives Switch supervisor self-testNode supervisor verification Self-test Conditions Pass sequenceFrame supervisor verification Switch supervisor verificationSelecting the switch clock source Selecting appropriate switch clocksDetermining 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 Viewing switch partitions Restoring a switch assembly to the active configurationResetting the clock and bootlist after servicing a node Replacing a switch assembly from service positionEfence of primary and primary backup nodes Installing adapter microcode packages Installing firmware updates on SP nodesAdapter Package Running diagnostics on a switch port Handling static-sensitive devices FRU removals and replacementsRemoving the switch assembly Procedures for switch assembliesReplacing the switch assembly Replacing the switch fans Removing the switch fansRemoving the switch front chassis cable Removing the switch supervisor card Replacing the switch front chassis cableRemoving the switch inner chassis cable Replacing the switch supervisor cardRemoving the switch power cards Replacing the switch inner chassis cableRemoving the SP Switch power supply cards Replacing the switch power 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
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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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