■ AC power input to the power supplies is incorrect.
■ The power supply is faulty or in protection mode.
■ The CPU is in over-temperature protection mode.
To determine if the AC input to the power supplies is correct
1
Check to see if the power button/LED on the control panel and the LED near
each AC power socket are off.
2
If an LED is off, remove and reinsert the AC power cable to the power supply
at the power source. Do the following:
■ If the power button LED flashes green, the abnormal lock-up is due to a
loose plug connection. Operations should continue normally.
■ If the LEDs are still off, it is possible that AC power to the equipment room
is faulty. In this case, contact the customer for resolution.
■ If the equipment room power is normal, replace the power supply.
3
If the power button is amber, check other components such as fans and CPUs
for further analysis.
To determine if a power supply is faulty or in protection mode
1
For each power supply, check the power button LED and the power supply
LED.
2
If both the LEDs are amber, replace the power supply.
3
If only one LED is amber, check other components such as fans and CPUs for
further analyses.
To determine if the CPUs are in over-temperature mode
1
Access the NetBackup web Appliance console and click Monitor > Hardware.
Access the NetBackup web user interface and click Monitor > System.
2
Check the alarm list.
Review the list for temperature- and fan- related alerts such as the following:
DescriptionAlert information
Temperature is not critical yet but
approaches the upper limit of the
range.
Overtemperature
A component such as a fan is
absent.
Absence
97Troubleshooting Hardware Issues
Troubleshooting system-induced shutdown
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