IBM RS/6000 SP, Maintenance Information

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MAP 0510: Switch Assembly
Environment (Yellow)
Off No environmental problems detected by switch supervisor card.
On Warning of environmental condition out of nominal range. Preventative Maintenance should
be scheduled for this switch.
Flashing Serious environmental condition detected; power shut off.
Power (Green)
Off No 48 V dc power available at switch assembly.
Flashing Power available at switch assembly, but switch logic is Off.
On Power available at switch assembly, and logic is On.
Note: Refer to "Service Position Procedures" in IBM RS/6000 SP: Maintenance Information, Volume 3,
Locations and Service Procedures for placing or removing the switch assembly in/from service
position.
001
– Read the following warning and then follow steps to ensure continuity of customer’s jobs in the queue.
Attention: Servicing a processor node or switch assembly will interrupt customer usage of the
processor node and the remainder of the high-performance switch network. If the high-performance
switch feature must be replaced in a multi-frame system, refer to "Removing and Restoring Switch
Resources" in
IBM RS/6000 SP: Maintenance Information, Volume 3, Locations and Service
Procedures, for information on isolating the switch assembly. The high-performance switch network can
not be re-initialized until the switch assembly is physically isolated from the rest of the HiPS network.
Attention: It is possible that the customer has modified switch cabling from standard configurations;
therefore, be careful about relying on node and frame information. Any connector jack numbers will be
correct regardless of the customer's cable configuration, so you may trace the cabling from the jack
number if necessary.
– Have customer complete all active parallel jobs, then remove the switch feature from the active config-
uration. Refer to "Removing and Restoring Switch Resources" in IBM RS/6000 SP: Maintenance Infor-
mation, Volume 3, Locations and Service Procedures, for these procedures.
– Check for system monitor errors indicating environmental problems with the switch feature. These can
be viewed by issuing the appropriate command from the control workstation:
pg /var/adm/spmon.log (For SSP code levels 1.00 - 1.01)
errpt -a -N sphwlog | pg (For SSP code levels 1.02 and higher)
In a frame with processor nodes, entries for the switch will refer to “node17” or “slot17”. In a multi-
switch frame, switches will be listed as even slot addresses.
Note: Refer to Step 001 on page 1-4 for more information on the pg command.
– Determine the switch assembly type (see page 1-294).
– The following table contains a prioritized list of conditions. Find the first condition that describes your
problem, then perform the associated action:
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RS/6000 SP MAPs