IBM RS/6000 SP manual SP Switch function MAP, Step, SP Switch power MAP

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