HP ML530 - ProLiant - 128 MB RAM Setup And Installation Manual page 251

Table C-11: Hot-Plug SCSI Hard Drive LED Combinations
Activity Online
LED LED
Off Off
Off On
On or On
flashing
HP ProLiant ML530 Generation 2 Server Setup and Installation Guide
Fault State
LED
On OK to replace the drive online.
The drive has failed and has been placed offline.
Off OK to replace the drive online if a predictive failure alert is
received, provided that the array is configured for fault
tolerance and all other drives in the array are online.
The drive is online and configured as part of an array.
Off OK to replace the drive online if a predictive failure alert is
received, provided that the array is configured for fault
tolerance and all other drives in the array are online.
The drive is online and being accessed.
System LEDs and Switches
continued
C-17