HP ProLiant ML570 Generation 2 Maintenance And Service Manual page 116

Connectors, LEDs, and Switches
Table 4-18: Hot-Plug Hard Drive LED Combinations
Activity LED Online LED
On Off
On Flashing
Flashing Flashing
Off Off
Off Off
Off On
On or
On
flashing
4-20
Fault LED Status
Do not remove the drive. Removing a drive during this process
causes data loss.
Off
The drive is being accessed and is not configured as part of an array.
Do not remove the drive. Removing a drive during this process
causes data loss.
Off
The drive is rebuilding or undergoing capacity expansion.
Do not remove the drive. Removing a drive during this process
causes data loss.
The drive is part of an array being selected by the Array Configuration
Flashing
Utility.
-Or-
The Options ROMPaq is upgrading the drive.
OK to replace the drive online if a predictive failure alert is received
and the drive is attached to an array controller.
The drive is not configured as part of an array.
-Or-
Off
If this drive is part of an array, a powered-on controller is not accessing
the drive.
-Or-
The drive is configured as an online spare.
OK to replace the drive online.
On
The drive has failed and has been placed offline.
OK to replace the drive online if a predictive failure alert is received
(refer to "System LEDs and Internal Health LED Status Combinations"
for details), provided that the array is configured for fault tolerance and
Off
all other drives in the array are online.
The drive is online and configured as part of an array.
OK to replace the drive online if a predictive failure alert is received
(refer to "System LEDs and Internal Health LED Status Combinations"
for details), provided that the array is configured for fault tolerance and
Off
all other drives in the array are online.
The drive is online and being accessed.
HP ProLiant ML570 Generation 2 Server Maintenance and Service Guide