HP StorageWorks SAN Director Installation Guide (A7393-90009, May 2007)

Diagnostics and troubleshooting184
Obtaining chassis and component status
The CLI commands listed in Table 45 on page 184 provide status and environmental information
about the chassis and its components. These commands provide information only, and they do not
interrupt traffic flow. For more information about these commands, see the Fabric OS command
reference manual.
Interpreting POST and boot results
The 4/256 SAN Director performs Power On Self Test (POST) by default each time the chassis is
powered on or the 4/256 SAN Director is rebooted or reset. The 4/256 SAN Director can be
rebooted using the reboot (to reboot each CP individually) 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.
Table 45 Environmental status and maintenance commands
Command Information Displayed
sensorShow Temperature readings for the port blades
Temperature readings for the CP cards
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 cards
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. See the Fabric OS system error message reference manual
for more information on the messages in this log.