Apple Xserve RAID - Manual (Page 46)

Using the Xserve RAID System 47
System
identifier Yellow
(solid or blinking) Indicates a hardware error in the
system or that someone has turned on
the light manually; check the
monitoring software for more
information.
RAID controller
(one for each
group of seven
drive modules)
Green
Red
OK
Failure
Power supply (See chart below) (See chart below)
Battery module Green
Red
OK
Failure
Cooling module Green
Red
OK
Failure
Temperature Green
Red
OK
Over temperature
Host activity Blue Two rows of 23 LEDs show level of fibre
channel activity on each host channel
Fibre channel
link Green Two LEDs indicate a link is established
Drive module
(left LED) Blinking blue
No light
Disk activity
No disk activity
Drive module
(right LED) Green
Yellow/green flash
Yellow
Red
Good
Rebuilding
Drive to be serviced (prefailure
condition)
Problem or failure
Drive module
(blank) No color No hard disk in the module
— Mute button (No LED) Press to turn off the audible alarm that
signals an error condition
Icon Indicator Color Description