ServerNet Cluster 6780 Operations Guide (G06.28+, H06.05+)

Troubleshooting and Replacement Procedures
ServerNet Cluster 6780 Operations Guide—525606-003
3-5
Hardware Problem Areas
Hardware Problem Areas
Table 3-2 lists some common hardware problem areas, describes troubleshooting
steps, and provides references for more information.
Table 3-2. Hardware Problem Areas (page 1 of 4)
Problem Area Symptom Recovery
MSEB Any 1. Use OSM to check for alarms and repair
actions for the MSEB resource. See Using
OSM Alarms on page 3-11.
2. Use the OSM Service Connection to perform
the CRU Responsive Test action on the MSEB.
3. Check the LEDs. See MSEB LEDs
on
page 3-26.
4. Check for ServerNet cable and PIC problems
before you consider replacing the MSEB.
5. See Replacing an MSEB
on page 3-30.
PIC (installed
in MSEB only)
Any 1. Use the OSM Service Connection to check the
PIC Type. Check that the PIC Type is NNA for
port 6 of the MSEBs installed in slots 51 and 52
of group 01.
2. Use OSM to check for alarms and repair
actions for the MSEB resource. See Using
OSM Alarms on page 3-11.
3. Check the link-alive LEDs. See MSEB LEDs
on
page 3-26.
4. If recommended by a service provider or by the
repair action text for an OSM alarm, perform
the Internal Loopback Test action on the PIC.
See Using the Internal Loopback Test Action
on
page 3-24.