RAID Xanadu User Manual page 162

Condition
SERVICE LED (orange)
illuminates
SERVICE LED (orange)
blinks at intervals
SERVICE LED (orange)
iterates turning on and off
at intervals (illuminating
for 5 seconds and going
out for 7 seconds)
This indicates that the disk array unit, connected disk enclosure, or
extended BBU requires maintenance. Since there are two or more
maintenance requests at the same time, check all of the following.
Confirm that AC power is being supplied to both PS0 and PS1 in
the disk array unit, connected disk enclosure, or extended BBU.
To ensure that AC power is being supplied, confirm that POWER
LEDs of the disk array unit and disk enclosure illuminate and
CHARGE LED of the extended BBU is not out.
When SERVICE LED of the connected disk enclosure
illuminates, refer to the description of "SERVICE LED
illuminates" in (4) "Trouble in disk enclosure".
When either of the FUALT LEDs of the extended BBU
illuminates, refer to the description of "BBU FAULT LED
blinks" in (5) "Trouble in extended BBU".
When the last operation is maintenance, processing such as disk
recovery may take time. Ask the maintenance personnel for the
estimated time of completion. If the disk is not recovered beyond
the estimated time, ask the maintenance personnel to investigate.
This indicates that the power-on sequence or download sequence of
the disk array unit is in progress.
It takes several minutes from start to finish of the sequence.
When SERVICE LED still blinks in 10 minutes, there may be a
failure.
Caution: Do not turn off the power or AC power while SERVICE
LED blinks at intervals.
This indicates that battery backup failed in the last power-off status.
Files may be destroyed. Restore those files using backup files.
This may occur because of the following causes. Remove the
appropriate cause.
1. The power-off status continued exceeding the battery backup
retention time when disconnecting the AC power without
performing the power-off procedure.
2. Battery backup was performed past the battery or extended BBU
life spans.
3. The disk array unit or extended BBU was continuously used or
has been used at the temperature higher than the predetermined
temperature.
4. Battery backup was or has been performed more than the
predetermined backup frequency.
Caution: In the cases other than 1, the battery backup retention
time of the battery or extended BBU cannot be
guaranteed. It is necessary to replace the battery or
extended BBU due to its life span. Contact your sales
or maintenance service agent. (There is a charge for
battery exchange due to life span.)
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