Dell PowerEdge R610 Hardware Owner's Manual page 18

Drive-Status Indicator Pattern
(RAID Only)
Blinks green two times per
second
Off
Blinks green, amber, and off
Blinks amber four times per
second
Blinks green slowly
Steady green
18
About Your System
Description
Identify drive/preparing for removal
Drive ready for insertion or removal
NOTE:
The drive status indicator remains off until all
hard drives are initialized after system power is
applied. Drives are not ready for insertion or removal
during this time.
Drive predicted failure
Drive failed
Drive rebuilding
Drive online