Dell SD7000-S Owner's Manual page 12

Figure 4. 3.5-inch hard drive indicator
1. hard drive activity indicator
3. hard drive
NOTE: If the hard drive is in Advanced Host Controller Interface (AHCI) mode, the status indicator
(on the right side) does not function and remains off.
Table 3. Hard drive indicator codes
Drive-status indicator pattern (RAID only)
Blinks green two times per second
Off
Blinks green, amber, and turns off
Blinks amber four times per second
Blinks green slowly
Steady green
Blinks green three seconds, amber three seconds,
and turns off six seconds
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2. hard drive status indicator
Condition
Identifying drive or preparing for removal.
Drive ready for insertion or removal.
NOTE: The drive status indicator remains off
until all hard drives are initialized after the
system is turned on. Drives are not ready for
insertion or removal during this time.
Predicted drive failure
Drive failed
Drive rebuilding
Drive online
Rebuild ended