3Ware 9550SX-4LP User Manual page 247

AEN Messages
will be read if this error occurs. If a valid DCB is found, the primary DCB is
re-written to rectify the errors found.
043h Backup DCB read error detected
This AEN will be sent when the controller sees a latent error in the backup
Disk Configuration Block (DCB). A scrubbing activity will be started to
repair any sector errors on getting this error. An effort is made to read the
backup DCB even when the primary DCB is successfully read. When an error
occurs here, this is a latent error that needs to be addressed before any future
errors so this DCB is re-written with the primary copy to rectify the errors
found.
044h Battery voltage is normal
The Battery Backup Unit measures and evaluates the battery pack voltage on
a continuous basis. If the voltage falls outside the acceptable range then
comes back within the acceptable range, this AEN will be posted to the host.
045h Battery voltage is low
The Battery Backup Unit measures and evaluates the battery pack voltage on
a continuous basis. If the voltage is below the warning threshold, this AEN
will be posted to the user. When this event happens, the Battery Backup Unit
is still able to backup the 3ware RAID controller, but the user should replace
the battery.
046h Battery voltage is high
The Battery Backup Unit measures and evaluates the battery pack voltage on
a continuous basis. If the voltage is above a warning threshold, this AEN will
be posted to the user. When this event happens, the Battery backup Unit is still
able to backup the 3ware RAID controller but the user should replace the
battery.
047h Battery voltage is too low
The Battery Backup Unit measures and evaluates the battery pack voltage on
a continuous basis. If the voltage is too low to operate, this AEN will be
posted to the user. This indicates that the battery pack must be replaced. The
Battery Backup Unit becomes not ready and is unable to backup the 3ware
RAID controller.
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