3Ware 9550SX-4LP User Manual page 248

Chapter 11. Troubleshooting
048h Battery voltage is too high
The Battery Backup Unit measures and evaluates the battery pack voltage on
a continuous basis. If the voltage is too high to operate, this AEN will be
posted to the user. The Battery Backup Unit becomes not ready and is unable
to backup the 3ware RAID controller. This indicates that the Battery Backup
Unit must be replaced.
049h Battery temperature is normal
The Battery Backup Unit measures and evaluates the battery pack
temperature on a continuous basis. If the temperature falls outside the
acceptable range then comes back within the acceptable range, this AEN will
be posted to the host.
04Ah Battery temperature is low
The Battery Backup Unit measures and evaluates the battery pack
temperature on a continuous basis. If the temperature is below 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 pack.
04Bh Battery temperature is high
The Battery Backup Unit measures and evaluates the battery pack
temperature on a continuous basis. If the temperature is above a warning
threshold, this AEN will be posted to the user. The user should check that
there is enough airflow around the Battery Backup Unit. When this event
happens, the Battery Backup Unit is still able to backup the 3ware RAID
controller but the user should replace the battery pack if the temperature
warning persists.
04Ch Battery temperature is too low
The Battery Backup Unit measures and evaluates the battery pack
temperature on a continuous basis. If the temperature is too low to operate,
this AEN will be posted to the user. When this event happens, the Battery
Backup Unit becomes not ready and is unable to backup the 3ware RAID
controller. The user must replace the battery pack.
04Dh Battery temperature is too high
The Battery Backup Unit measures and evaluates the battery pack
temperature on a continuous basis. If the temperature is too high to operate,
this AEN will be posted to the user. The user should check that there is
238 3ware Serial ATA RAID Controller User Guide