Chapter 4: Subsystem Operation and Monitoring
OFF
indicates that no power is supplied
to the subsystem or the subsystem/RAID
controller has failed.
BUSY
White
FLASHING
indicates that there is active
traffic on the host/drive channels.
OFF
indicates that there is no activity on
the host/drive channels.
ATTEN
(Attention)
Red
ON
indicates that a component
failure/status event has occurred.
OFF
indicates that the subsystem and all
its components are operating correctly.
Table 4-1: LCD Panel LED Definitions
NOTE:
During the power-on process, the ATTEN LED will light up
steadily. Once the subsystem successfully boots up with no faults,
the ATTEN LED is turned off.
4.4.3
Drive Tray LEDs
Two (2) LED indicators are located on the right side of each drive
tray. (See
Figure 4-5
) Refer to
Table 4-2
for the LED definitions.
When notified by a drive failure message, you should check the drive
tray indicators to find the correct location of the failed drive.
Replacing the wrong drive can fatally fail a logical array.
Figure 4-5: Drive Tray LEDs
Name
Color
Status
Drive Busy
Blue
•
•
Steady
ON
indicates the disk drive is
ready.
Flashing
BLUE
indicates the RAID
controller is accessing the disk drive.
The drive is busy.
OFF
indicates that there is no activity on
Status-indicating LEDs
4-9
