ServerNet Cluster Manual

Troubleshooting and Replacement Procedures
ServerNet Cluster Manual—520575-003
7-6
Hardware Problem Areas
Hardware Problem Areas
Table 7-2 lists some common hardware problem areas, describes troubleshooting
steps, and provides references for more information.
Table 7-2. Hardware Problem Areas (page 1 of 3)
Problem Area Symptom Recovery
MSEB Any 1. Use TSM to check for alarms and repair
actions for the MSEB resource. See Using
TSM Alarms on page 7-12.
2. Use the TSM Service Application to perform
the CRU Responsive Test action on the
MSEB.
3. Check the LEDs. See MSEB and ServerNet
II Switch LEDs on page 7-33.
4. Check for ServerNet cable and PIC
problems before considering replacing the
MSEB.
5. See Replacing an MSEB
on page 7-35.
PIC (installed in
MSEB only)
Any 1. Use the TSM Service Application to check
the PIC Type. Make sure the PIC Type is
“NNA” for port 6 of the MSEBs installed in
slots 51 and 52 of group 01.
2. Use TSM to check for alarms and repair
actions for the MSEB resource. See Using
TSM Alarms on page 7-12.
3. Check the link-alive LEDs. See MSEB and
ServerNet II Switch LEDs on page 7-33.
4. If recommended by a service provider or by
the repair action text for a TSM alarm,
perform the Internal Loopback Test action on
the PIC. See Using the Internal Loopback
Test Action on page 7-30.
5. See Replacing a PIC in a ServerNet II
Switch on page 7-35.