152 Troubleshooting
Checking fan components
1. Log in to the switch as user.
2. Issue the fanShow command.
3. Check the fan status and speed output.
If any of the fan speeds display abnormal RPMs, replace the fan FRU.
Checking the switch temperature
1. Log in to the switch as user.
2. Issue the tempShow command.
3. Check the temperature output. Look for indications of high or low temperatures.
Checking the power supply
1. Log in to the switch as user.
2. Issue the psShow command.
3. Check the power supply status.
See the appropriate SAN Switch installation guide for details regarding the power supply status.
If any of the power supplies show a status other than OK, consider replacing the power supply as soon
as possible.
Checking the temperature, fan, and power supply
1. Log in to the switch as user.
2. Issue the sensorShow command.
See the HP StorageWorks Fabric OS 5.x command reference guide for details regarding the sensor
numbers.
3. Check the temperature output. Look for indications of high or low temperatures.
4. Check the fan speed output.
If any of the fan speeds display abnormal RPMs, replace the fan FRU.
5. Check the power supply status.
If any of the power supplies show a status other than OK, consider replacing the power supply as
soon as possible.
Correcting device login issues
To try to pinpoint problems with device logins, use the following procedure:
1. Log in to the switch as admin.
2. Issue the switchShow command, and then check for correct logins.
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