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

SP Switch function (MAP 0620)

Step 0620-019

Since the diagnostics did not return an SRN, no problem was detected.

1.Have you just reseated, repaired, or replaced a component? v If yes, go to ªStep 0620-043º on page 1-36 to verify fix.

vIf no:

a.Problem is in the SP Switch.

b.Go to ªStep 0620-041º on page 1-35 to service or replace switch assembly.

Step 0620-020

The advanced diagnostics returned an SRN indicating that the diagnostics detected a problem. 1. Is this SRN the same as the previous SRN?

vIf yes, go to ªStep 0620-011º on page 1-23 to perform service on the next highest priority component in the list for this SRN.

vIf no, go to ªStep 0620-012º on page 1-26 to service the new SRN.

Step 0620-021

An error message in the /var/adm/SPlogs/css/out.top file indicated that you either have an external switch connection problem or a problem with a wrapped port. Priority 3 in Table 1-8 on page 1-22directed you to this step.

1.Check the specified jacks at the rear of the SP Switches for an obvious problem such as a loose connection.

2.Pay special attention to cables that may have been moved recently.

3.Do connections appear to be okay? v If yes, go to ªStep 0620-022º.

vIf no:

a.Fix the obvious connection problem.

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

Step 0620-022

The /var/adm/SPlogs/css/out.top file indicated a switch problem and all connection appeared to be okay.

Note: Be aware that in large systems, connections for SP Switches not in the multi-switch frame are usually scattered throughout the out.top file.

1.If this is a multi-frame system, check the indicated jacks against the wiring charts for multi-frame switch systems.

2.Is this a multi-frame system with problems reported on all switch data cables from one or more switches?

v If yes:

a.The problem may be caused by clocking or grounding between frames.

b.Go to ªStep 0620-024º on page 1-30.

vIf no, go to ªStep 0620-023º.

Step 0620-023

Some but not all switch data cables appear to be having problems.

1.Depending on whether the problem is a wrapped port or a switch-to-switchconnection, perform one of the following steps:

vwrapped port (wrap plug installed): Remove the existing wrap plug. Install a different wrap plug on the jacks indicated.

vswitch-to-switchconnection: Disconnect the switch data cable from both ports indicated. Install wrap plugs on the jacks indicated.

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-29