Dell PowerVault 720N Installation And Troubleshooting Manual page 71

Parity disk x% rebuilt
Power supply degraded!
Replace NVRAM batteries!


The system shows the amount of com-
pleted data reconstruction on the spare
disk after the system entered degraded
mode.
x—Amount of data reconstructed. If an
error occurs during reconstruction, the
error message overrides this message.
One of the power supply units is down.
For more information about this error
message, check the messages on the
console. The power supply unit (1 or 2)
generating the alarm is identified on the
console message.
This message appears in these situations:
An NVRAM card battery is low or dis-
charged. Replace both batteries as
soon as possible.
Both batteries on the NVRAM card
are low or discharged. The system
will shut down every 24 hours to
encourage you to replace the batter-
ies as soon as possible. To set the
time that the system runs before it
automatically shuts down, use the
raid.timeout option with the
options command. Refer to the Dell
PowerVault 720N, 740N, and 760N
System Administrator and Command
Reference Guide for more
information.
Both NVRAM card batteries are low
or discharged and the system is in
degraded mode. The system shuts
down immediately.
Troubleshooting the Filer Hardware 3-19