RAID Xanadu User Manual page 164

(3) Trouble in disk array unit or disk enclosure (rear panel power LED status)
Condition
POWER GOOD LED
(green) illuminates
(4) Trouble in disk enclosure
Condition
POWER LED (green)
illuminates, but SERVICE
LED (orange) is out
POWER LED (green) is
out
SERVICE LED (orange)
illuminates
This is not a fault.
This indicates that AC power is being supplied to the unit and the
power supply is in normal operation.
Caution: The unit has dual power supply configuration.
Therefore, SERVICE LED illuminates when neither PS0
nor PS1 illuminates.
This is not a fault.
This indicates that the disk enclosure is in normal operation after
turning on.
This indicates that starting the disk enclosure has not been complete.
The power of the disk enclosure is turned on in conjunction with the
power of the connected disk enclosure or disk array unit.
It takes several minutes until POWER LED of the disk enclosure
turns on after turning on the unit power.
If POWER LED does not illuminate in 10 minutes, check the
following.
Check whether POWER GOOD LED of the disk enclosure power
supply illuminates, indicating that the power is supplied to the
disk enclosure.
Check cable connection status to confirm whether this disk
enclosure is normally connected to other disk enclosures or the
disk array unit.
Check POWER LED of the disk array unit to confirm whether
the power of the disk array unit was turned on. If this LED is out,
check whether the power source is normal.
This indicates that the disk enclosure is out of order or maintenance
has not been complete.
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.
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Action
Action