HP ProLiant ML350 G4 Server - Manual (Page 24)

24 HP ProLiant ML350 Generation 4p Server User Guide
SATA or SAS Hard Drive LEDs
Item LED Description Status
1 Online/Activity status Green = Drive activity
Flashing green = High activity on the
drive or drive is being configured as part
of an array
Off = No drive activity
2 Fault/UID status Amber = Drive failure
Flashing amber = Fault-process activity
Blue = Unit identification is active
Off = No fault-process activity