3-5
Monitoring
APC Module LEDs
Each APC module has two LEDs, which are visible from the rear of
the Storage Enclosure, as shown in
:
Figure 3-3 APC Module LEDs
Table 3-3 Drive Carrier
(Bicolor LED)
Color and Condition of LED 2
a
Green
Amber
Status Indicated
Off
Off
No drive present.
On
Off
Drive present.
Slow blink
Off
Drive spinning down.
Fast blink
Off
Drive being identified, or drive
has spun down.
Off
Fast blink
Drive failed.
a
When Drive Carrier LED 2 is illuminated or blinking, LED 2 on the front panel of
the Storage Enclosure is also illuminated, indicating a shelf fault. (See
Table 3-4 Drive Carrier
Drive Status
Interface
Spin Up
Online
I/O Activity
U320 SCSI (SC4100)
On
Off
On (briefly)
FC (FC4100)
Blinking
On
Off (briefly)
SATA (FS4100 or FS4500)
Off
On
Off (briefly)
Green LED = APC OK
Yellow LED = APC Fault