3Ware 9550SXU-16ML User Guide - Page 236

h Unit number assignments lost, 042h Primary DCB read error occurred

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Chapter 11. Troubleshooting configuration parameters which are lost will then return to their default values. 041h Unit number assignments lost The 3ware RAID controller tries to keep the unit numbers persistent across soft resets. This AEN will be sent if unit number assignments were lost from some unknown reasons.(This event rarely happens. Please contact AMCC 3ware technical support if this event occurs.) 042h Primary DCB read error occurred This AEN will be sent when the controller finds error in reading the primary copy of the Disk Configuration Block (DCB). The back-up copy of the DCB 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. 226 3ware 9550SX Serial ATA RAID Controller User Guide

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Chapter 11. Troubleshooting
226
3ware 9550SX Serial ATA RAID Controller User Guide
configuration parameters which are lost will then return to their default
values.
041h Unit number assignments lost
The 3ware RAID controller tries to keep the unit numbers persistent across
soft resets. This AEN will be sent if unit number assignments were lost from
some unknown reasons.(This event rarely happens. Please contact AMCC
3ware technical support if this event occurs.)
042h Primary DCB read error occurred
This AEN will be sent when the controller finds error in reading the primary
copy of the Disk Configuration Block (DCB). The back-up copy of the DCB
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.