HP Array Controller HSG V8.7 Software - Manual (Page 150)

Storage Devices
7–4 UltraSCSI RAID Enclosure
Disk Drive SBB Status Reporting
The array controller monitors the status of the disk drive SBBs. If a
fault occurs, the fault and the disk drive SBB device address (SCSI
target ID) are reported to the array controller or host for processing.
The disk drive status LEDs define the status of individual disk drive
SBBs.
Each disk drive SBB has two LED indicators (see Figure 7–4) that
display the SBBs status. These LEDs have three states: O
N , O FF , and
F LASHING .
Figure 7–4 Disk Drive Status LEDs
• The green device activity LED (C ALLOUT 1) is O N or F LASHING
when the disk drive SBB is active.
• The amber device fault LED (C ALLOUT 2) indicates an error
condition when it is either O N or F LASHING . The array controller
controls this LED. The device fault LED also F LASHES when the
array controller issues a “locate” command.
Caution
Removing a disk drive SBB when the upper LED is O N or
F LASHING might compromise data integrity.
Figure C ALLOUTS
1. Device activity LED
2. Device fault LED
1
2
CXO4652B