IBM SAN768B-2, Installation, Service And User Manual

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Appendix C. Diagnostics and troubleshooting
For information about troubleshooting the entire fabric, refer to the Fabric OS
Administrator's Guide .
The SAN768B-2 includes a number of diagnostic tools to assist with
troubleshooting, including LEDs on the hardware, commands that display current
status, diagnostic tests for hardware and software, and error messages. In addition,
a number of managing and monitoring features are available, such as Fabric
Manager, Web Tools, Fabric Watch, and Advanced Performance Monitoring.
If the SAN768B-2 does not operate as expected, the following steps can be taken to
diagnose the problem:
v Check the LEDs and refer to the LED tables (see Chapter 4, “Monitoring system
components,” on page 45) for interpretation and recommended actions.
v
Review the results of the last POST run by the SAN768B-2 (see “Interpreting
POST and boot results” on page 134).
v Review the error logs (refer to the Fabric OS System Error Messages Reference
Manual and the Fabric OS Administrator's Guide for more information).
v
Review RASlog entries.
v
Enter the
sensorShow
command to determine the status of the hardware
components.
v Run diagnostic tests (see “Diagnostics” on page 135).
v
Reboot the SAN768B-2 or power the entire chassis off (“Powering off the
SAN768B-2” on page 44) and then back on (“Providing power to the
SAN768B-2” on page 33).
If the problem is still unresolved after these steps, contact technical support.
This appendix provides the following information:
v “Obtaining chassis and component status”
v “Interpreting POST and boot results” on page 134
v
“Diagnostics” on page 135
v “Troubleshooting” on page 135
Obtaining chassis and component status
The CLI commands listed in Table 25 on page 134 provide status and
environmental information about the chassis and its components. These commands
provide information only, and they do not interrupt traffic flow. For more
information about these commands, refer to the
Fabric OS Command Reference
Manual .
© Copyright IBM Corp. 2011
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