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

Troubleshooting and Replacement Procedures
ServerNet Cluster 6780 Operations Guide—525606-003
3-2
Software Problem Areas
•
Use the OSM Service Connection to obtain more information about a problem. In
many cases, the OSM Service Connection not only identifies the problem
component but can tell you how to fix it.
•
If possible, gather information about a problem from multiple perspectives. The
view of a ServerNet cluster can change significantly from one node to another, so
gather data at each node using SCF and the OSM Service Connection and then
compare the information.
•
Use more than one tool. For example, you can use the OSM Service Connection,
SCF, and a guided procedure to check the status of an Expand-over-ServerNet
line. Using all three methods allows you to compare the information returned by
each method.
•
Sometimes it can be difficult to determine if a problem is related to faulty hardware,
faulty software, or both. In general, check the software first.
Software Problem Areas
Table 3-1 lists some common software problem areas, describes troubleshooting
steps, and provides references for more information.
Table 3-1. Software Problem Areas (page 1 of 3)
Problem Area Symptom Recovery
OSM Service
Connection
The ServerNet
Cluster resource
does not appear.
All other
symptoms
See ServerNet Cluster Resource Missing From
Tree Pane on page 3-10
For additional troubleshooting information, see
the OSM online help.
Guided procedures Any See the online help for the guided procedure
you are using.
SNETMON Any See Troubleshooting SNETMON
on page 3-13.
MSGMON Any See Troubleshooting MSGMON
on page 3-14.
SANMAN Any See Troubleshooting SANMAN
on page 3-15.
ServerNet
communication
Any See Methods for Repairing ServerNet
Connectivity Problems on page 3-18.
Communication
on an internal
fabric is disrupted.
To check for alarms and repair actions for the
Internal Fabric resource, use the OSM Service
Connection. See Using OSM Alarms
on
page 3-11.
To get more information, perform SCF and OSM
diagnostic actions. See Checking the Internal
ServerNet X and Y Fabrics on page 3-20.