HP StorageWorks SAN Director Installation Guide (A7393-90009, May 2007)

SAN Director installation guide 183
9 Diagnostics and troubleshooting
This chapter provides the following information:
• Obtaining chassis and component status, page 184
• Interpreting POST and boot results, page 184
• Diagnostics, page 186
• Troubleshooting the 4/256 SAN Director, page 187
For information about troubleshooting the entire fabric, see the HP StorageWorks Fabric OS
administrator guide.
The 4/256 SAN Director includes a number of diagnostic aids to assist with troubleshooting,
including hardware LEDs, 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 (APM).
If the 4/256 SAN Director does not operate as expected, the following steps can be taken to
diagnose the problem:
• Check the LEDs and see the LED tables (see ”Monitoring system components” on page 69) for
LED meanings and recommended actions.
• Review the results of the last POST run by the 4/256 SAN Director (see ”Interpreting POST and
boot results” on page 184).
• Review the error logs (see the Fabric OS system error message reference manual for more
information).
• Type the sensorShow command to determine the status of the hardware components.
• Run diagnostic tests (see ”Diagnostics” on page 186).
• Reboot the switch or power the entire chassis off/on.
If the problem is still unresolved after these steps, contact HP.