ServerNet Cluster Manual

Troubleshooting and Replacement Procedures
ServerNet Cluster Manual—520575-003
7-7
Hardware Problem Areas
ServerNet Cable
(SEB to SEB, SEB to
MSEB, or MSEB to
MSEB)
Internal fabric
communication
1. Use TSM to check for alarms and repair
actions for the Internal Fabric resource. See
Using TSM Alarms on page 7-12.
2. Perform SCF and TSM diagnostic actions to
get more information. See Checking the
Internal ServerNet X and Y Fabrics on
page 7-26.
3. Check to make sure all ServerNet cables
between enclosures within a system are
securely connected.
4. Refer to the NonStop S-Series Hardware
Support Guide or the CSSI Web site. (Click
Start>Programs>Compaq TSM>Compaq S-
Series Service (CSSI) Web.)
Fiber-Optic
ServerNet Cable
(MSEB to ServerNet
II Switch or four-lane
link)
External fabric
communication
problem
1. Use TSM to check for alarms and repair
actions for the External Fabric resource.
These include alarms on the switch-to-node
link and switch-to-switch link resources. See
Using TSM Alarms
on page 7-12.
2. Perform the Node Connectivity ServerNet
Path Test. See Checking the External
ServerNet X and Y Fabrics on page 7-29.
3. Check to make sure the fiber-optic
ServerNet cables are securely connected
between the MSEBs in group 01 and the X-
and Y-fabric ServerNet II Switches.
4. Check the link-alive LEDs. See MSEB and
ServerNet II Switch LEDs on page 7-33.
5. See Replacing a Fiber-Optic Cable Between
an MSEB and a ServerNet II Switch on
page 7-36.
Table 7-2. Hardware Problem Areas (page 2 of 3)
Problem Area Symptom Recovery