HP StorageWorks 2300 Disk System - Manual (Page 103)

Troubleshooting 103
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Note An amber LED that is on briefly when a component first comes on
is normal. If this light remains on more than a couple of seconds, a
fault has been detected.
Power Supply/
Fan Module Amber Power Supply/Fan fault
Amber
Flashing Host is identifying the power supply
module.
Green Operating normally
OFF Power is off.
Disk Activity
3
Green LED
ON Disk module installed and operating
normally (Controlled by the disk drive)
Green Flashing Disk drive self-test in progress or I/O
activity to/from disk (Controlled by the
disk drive)
Amber LED
ON Disk module fault (Controlled by host
software)
Amber LED
flashing Host is identifying the disk module
(Controlled by host software)
OFF Not installed or not operating
Table 11. LED Functions (Continued)
LED State Indication
1 Start-up and self-tests occur briefly when the unit is
powered on.
2 A component has failed; temperature or voltage is out of
normal range. See Isolating Faults on page 104
3 When a disk is installed with power on, its activity LED
blinks on momentarily indicating a SCSI bus reset. When
the disk is ready, the LED blinks once and turns off.
Thereafter, it flashes when there is I/O to the disk.