HP StorageWorks 2/128 HP StorageWorks Core Switch 2/64 and SAN Director 2/128 - Page 80

Interpreting POST and boot results, POST

Page 80 highlights

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 "Interpreting LED 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

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Operating the switch
80
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 ”
Interpreting LED
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.