Dell PowerVault MD3420 - Manual (Page 11)

Drive-Status Indicator Pattern
(RAID Only)
Condition
Blinks green, amber, and turns
off Predicted drive failure
Blinks amber four times per
second Drive failed
Blinks green slowly Drive rebuilding
Steady green Drive online
Blinks green three seconds,
amber three seconds, and
turns off six seconds Rebuild aborted
Power Supply and Cooling Fan Features
The MD3400 and MD3420 Series storage array includes two integrated, hot-swappable power supply/
cooling fan modules. Both modules must be installed to ensure proper cooling. The system requires at
least one of the cooling fans to function, to avoid overheating.
A power supply/cooling fan module can be replaced without powering down the system. For information
on removing and installing the modules, see
Power Supply/Cooling Fan Module .
Power Indicator Codes and Features
Figure 6. Power Indicator Codes and Features
Item LED Type Icon Description
1 DC power The LED lights green when the DC output voltage is within
the limit.
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