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Installing the SAN Switch 2/8
46 hp StorageWorks SAN Switch 2/8 Installation Guide
Power On Self-Test
Each time the switch is powered on, rebooted, or reset, the switch automatically
runs a Power On Self-Test (POST). During POST the port status LEDs flash,
verifying that the switch is operating properly. POST completes in approximately
six minutes, with total boot time approximately seven minutes.
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.