18 About Your System
Hard-Drive Status Indicators 
Figure 1-3. Hard-Drive Indicators
1  drive-status indicator (green 
and amber)
2 drive-activity indicator (green)
Drive-Status Indicator Pattern (RAID Only) Condition
Blinks green two times per second Identify drive/preparing for removal
Off 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.
Blinks green, amber, and off Drive predicted failure
Blinks amber four times per second Drive failed
Blinks green slowly Drive rebuilding
Steady green Drive online
R310HOM.book  Page 18  Thursday, March 4, 2010  1:03 AM