Interpreting Post And Boot Results; Post - HP StorageWorks 2/64 - Core Switch Installation Manual

Interpreting POST and boot results

The Core Switch 2/64 and the SAN Director 2/128 perform power on self test (POST) by
default each time the chassis is powered on or the switch is rebooted or reset. You can reboot
the switch using the switchReboot, reboot, or fastBoot commands. The fastBoot
command reboots the switches without running POST. If the active CP card is rebooted, it fails
over to the standby CP card.

POST

Each time the switch is powered on or reset, the switch automatically performs POST, a system
check during which LED patterns might vary.
To verify that POST has completed without error:
• Verify that all LEDs return to a normal state after POST completes (see
activity" on page 64).
If one or more LEDs do not return to a normal state, and this is not due to the switch being
set to beacon, refer to the relevant LED table to identify and correct the problem. For port
cards and CP cards, the slotShow command can be used to check the status of the slots.
For information about turning beaconing on/off, refer to the HP StorageWorks procedures
user guide for the Fabric OS version running on your switch.
• Verify that the switch prompt appears when POST completes.
If it does not appear, POST was not successfully completed. Contact the switch supplier for
support.
• Review the system log.
Any errors detected during POST are written to the system log, which is accessible through
the errShow command. For information about error messages, refer to the HP
StorageWorks system error messages reference guide for the Fabric OS version running on
your switch.
POST includes the following steps:
• Preliminary POST diagnostics are run.
• Operating system is initialized.
• Hardware is initialized.
• Diagnostic tests are run on several functions, including circuitry, port functionality, ability to
send and receive frames, all aspects of memory, parity, statistics counters, and serialization.
80 Operating the switch
"Interpreting LED