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

ServerNet Cluster 6780 Operations Guide—525606-003
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3
Troubleshooting and Replacement
Procedures
This section describes how to use software tools to diagnose and troubleshoot a
ServerNet Cluster. The software tools available to you are:
•
Components of the HP NonStop Open System Management (OSM) Interface: the
OSM Service Connection, the OSM Event Viewer, and the OSM Guided
procedures
•
The Subsystem Control Facility (SCF)
This section also contains replacement procedures for the main hardware components
of a ServerNet cluster.
This section contains these subsections:
Troubleshooting Procedures
For a list of problems and recovery actions for ServerNet cluster components, see
Table 3-1 and Table 3-2. For a general approach to troubleshooting, read the
Troubleshooting Tips on page 3-1.
This section does not include common troubleshooting information for NonStop
S-series servers. Instead, refer to the CSSI Web. (Start>Programs>HP CSSI
Web>CSSI Web.)
Troubleshooting Tips
As you troubleshoot ServerNet cluster problems:
•
Perform visual checks to help isolate problems:
•
Check the LEDs of the 6780 switch and the MSEBs to look for fault conditions.
See Figure 3-8 on page 3-27 and Figure 3-7 on page 3-26
•
Check the display on the 6780 switch logic board. See Logic Board Display on
the 6780 Switch on page 3-28.
•
Look for loose or disconnected ServerNet cables. Check the link-alive LED
associated with each cable connection.
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Troubleshooting Procedures
3-1
Replacement Procedures 3-30