RAID Xanadu User Manual page 163

(2) Trouble in disk array unit (rear panel controller LED status)
Condition
READY LED (green)
illuminates
READY LED (green)
blinks
READY LED (green)
blinks rapidly
BACK UP LED (orange)
illuminates while AC
power is disconnected
The battery FAULT LED
(orange) blinks
LINK LED (green) of the
LAN connector is out, or
blinks
ACTIVE LED (orange)
of the LAN connector
illuminates, or blinks
This indicates that the power-on sequence is in progress.
It takes several minutes from start to finish of the sequence.
When READY LED still illuminates in 10 minutes, there may be a
failure.
This is not a fault.
This indicates that the controller is in normal operation.
This indicates that power is disrupted.
It takes several minutes from start to finish of the sequence.
When READY LED still blinks rapidly in 10 minutes, there may be a
failure.
This is not a fault.
This indicates that data is retained by the battery.
This is not a fault.
It is one year before the end of the life span of the battery installed in
the disk array unit.
A battery purchase and maintenance request must be made. Contact
your sales or maintenance service agent. (There is a charge for
battery exchange due to life span.)
When connecting a cable to the LAN connector, LINK LED (green)
may not turn on because of the following causes.
The power of HUB, switch, or server to connect has not been
turned on.
The power supply of HUB, switch, or server to connect is at fault.
The cable type is wrong.
A cross cable and straight cable are not recognized automatically.
Use a cable following the predetermined connection method.
The Speed and Duplex settings do not match.
Auto Detect is set as default. Since connecting to a device in full
duplex mode could cause abnormal operation, set Auto Detect or
Half Duplex to the device to connect.
(To set Full Duplex, ask your sales or maintenance service agent.)
Depending on the type of hub, it may not illuminate or it may
blink.
This is not a fault.
ACTIVE LED (orange) illuminates when connection is established
via the disk array unit monitoring protocol with a cable connected to
the LAN connector. If the cable is removed from the unit, ACTIVE
LED still illuminates for a while.
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