Installing the SAN Switch 2/8
Power On Self-Test
Each time the switch is powered on, rebooted, or reset, the switch automatically runs a Power On
POST runs through the following test cycles:
■Preliminary POST diagnostics
■Initialization of operating system
■Initialization of hardware
■Diagnostic tests are run on a number of functions, including circuitry, port functionality, memory, parity, statistics counters, and serialization
For example, if the switch prompt does not display when POST completes, POST was unsuccessful. Contact your authorized HP switch supplier for more information.
To determine whether POST completed without errors, verify that all LEDs return to a normal state after POST is complete. If one or more LEDs do not return to a normal state (and this is not due to the switch being set to beacon), see “Interpreting LED Activity” on page 60 in Chapter 3.
Note: For more information about beaconing, refer to the hp StorageWorks Fabric OS Procedures V3.0.x/V4.0.x User Guide.
Checking POST Results
Check the success/fail results of the diagnostic tests run during POST via LED activity, the error log, or the CLI using the errShow command. For more information about error messages, refer to the hp StorageWorks Fabric OS V3.0.x/V4.0.x Reference Guide.
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