AR1000 RAID Subsystem Hardware Reference Guide
23
II. System Components
II. Components
Front Cooling Fan Control Board
A cable connects the front cooling fan control board and the hard disk drive
message board. Orient the red markings on each end of the cable to pin 1.
Connects to the SCSI
Back plane Board
3-pin
Fan Header
3-pin
Fan Header
LED Board Header
(connects to the LED
board through a ribbon
cable)
Pin 1
8 1
16 9
Hard Disk Drive Message Board
Orient the red markings on the other end of the cable to pin 1. If the fifth set
of LEDs fails, it may be indicating a faulty front cooling fan control board.
If this is the case, remove the control board and send it back to the vendor.
Message LED Description
Green: Power LED
Yellow: Hard Disk Access LED
Red:
Hard Disk Status LED
Front Cooling Fans
8 1
16 9
Pin 1
Green
Fifth Set
of LEDs
Yellow
Red
First Set
of LEDs
* The function must be supported by the RAID controller’s SAF-TE function.
Power LED
Status LED
Description
off
off
Power subsystem OK and ready for hard drive insertion
on
off
Hard disk drive ready for operation
on
on
Hard disk drive failure (*)
on
fast flash
RAID rebuilding (*)
on
slow flash
Hot-spare hard disk drive ready (*)
fast flash
on
Hard disk drive failure/short circuits
fast flash
fast flash
Fan failure
