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

Page 54

SP Switch function (MAP 0620)

5.Set the switch clock selections on the ªproblemº switches (refer to ªSelecting appropriate switch clocksº on page 3-6).

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

vDo not perform cable wrap test.

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

7.Look for an SRN indicating a clock problem, such as ªExternal clockº being listed as one of the failing components.

Note: Do not exit from diagnostics at this time, as it may be used in the following steps.

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

vIf yes, the clock problem is resolved. Go to ªStep 0620-043º on page 1-36 to verify fix.

vIf no, go to ªStep 0620-041º on page 1-35 to replace the problem switch assembly.

Step 0620-036

The ªcss0º diagnostics failed at ªStep 0620-033º on page 1-33 and indicated a clock problem.

1.Record current clock setting for the switch (internal/external).

2.From the control workstation, select the internal clock for this switch assembly.

3.Run advanced diagnostics on ªcss0º on the ªtestº processor node and its associated switch port. v Do not perform cable wrap test.

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

4.Look for an SRN indicating a clock problem, such as ªExternal clockº being listed as one of the failing components.

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

vIf yes, go to ªStep 0620-037º.

vIf no, go to ªStep 0620-037º.

Step 0620-037

You have run the ªcss0º diagnostics.

1.At the SP Switch, check the data cable interposer (if present) and the switch data cable corresponding to the original external clock selection for any obvious problem such as a loose cable connection or swapped cables.

2.Determine which connection is the other end of the switch data cable checked in the step above. v Refer to Appendix A in RS/6000 SP: Installation and Relocation.

3.Check the switch data cable at the other SP Switch for any obvious problem such as a loose cable connection or swapped cables.

4.Do the switch data cables and any data cable interposers appear to be okay? v If yes, go to ªStep 0620-038º.

v If no:

a.Fix the obvious cable connection problem.

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

Step 0620-038

The switch data cables and the data cable interposers appear to be okay.

1.Swap the data cable with another one at S00-BH-J3, S00-BH-J4, or S00-BH-J5.

2.To provide a good clock, swap the switch data cable at the switch assembly with another one.

3.Reset the clock setting to that recorded in ªStep 0620-036º.

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

vDo not perform cable wrap test.

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

1-34RS/6000 SP: SP Switch Service Guide

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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 Splstdata -s pg Error # Message/condition Description and actionIf the cabling does not match, correct the cabling SDRGetObjects DependentNodeL03-N01 L01-S00-BH-J18E02-S00-BH-J18 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 Ifconfig Utility see note Runs on Description FaultserviceWormRTGRc.switch File see note Location Description Rc.switch.logUsing the css.snap script Node supervisor verification Switch supervisor self-testVerification tests using Perspectives Self-test Conditions Pass sequenceSwitch supervisor verification Frame supervisor verificationDetermining the correct switch clock source Selecting appropriate switch clocksSelecting the 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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