Table 26. Environmental status and maintenance commands
Command
Information Displayed
sensorShow
Temperature readings for the port blades
Temperature readings for the CP blades
Status and RPM of all operational fans
Status of all operational power supplies
tempShow
Temperature readings for the port blades
Temperature readings for the CP blades
psShow
Status of all operational power supplies
fanShow
Status and RPM of all operational fans
chassisShow
Serial number, time awake, and additional
information about each component
slotShow
Slot occupancy
errShow
,
errDump
System error log. Refer to the
Fabric OS
Message Reference
for more information on
the messages in this log.
Interpreting POST and boot results
The SAN384B-2 performs power on self test (POST) by default each time the
system is powered on, rebooted, or reset. The system can be rebooted using the
reboot
(to reboot each CP individually), or
fastBoot
commands. The
fastBoot
command reboots the SAN384B-2 without running POST. If the active CP blade is
rebooted, it fails over to the standby CP blade.
POST
To verify that POST has completed without error:
v
Verify that all LEDs return to a normal state after POST completes (see
Chapter 4, “Monitoring system components,” on page 51).
If one or more LEDs do not return to a normal state, and this is not due to the
SAN384B-2 being set to beacon, refer to the relevant LED table to identify and
correct the problem. For port blades, router blades, and CP blades, the
slotShow
command can be used to check the status of the slots. For information about
turning beaconing on/off, refer to the
Fabric OS Administrator's Guide
.
v
Verify that the switch prompt displays when POST completes.
If it does not display, POST was not successfully completed. Contact IBM for
support.
v
Review the system error log using the
errShow
or
errDump
commands.
v
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
Fabric OS Message Reference
.
POST includes the following steps:
1.
Preliminary POST diagnostics are run.
2.
Operating system is initialized.
3.
Hardware is initialized.
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