Understanding Removable Disk Drive Leds - Intergraph StudioZ GT RAX Setup Manual

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Understanding Removable Disk Drive LEDs

Light-emitting diodes (LEDs) visible behind the disk drive bay door help you determine removable
disk drive activity and status at a glance. There are two LEDs for each disk drive, for a total of
eight removable disk drive LEDs.
The right LED above each removable disk drive flashes to show disk activity.
The left LED functions only when a SCSI Activity Fault-Tolerant Enclosure (SAF-TE) card is
installed on the disk drive backplane, and the backplane is connected to a SAF-TE compliant SCSI
or RAID controller.
On a system with RAID disk drives, an optional SAF-TE card monitors the status of RAID disk
drives. The SAF-TE card causes the left LED above each disk drive to indicate RAID disk drive
status as follows:
Left LED Activity
Off
Steady on
Steady blink (approx. 1 per second)
Fast steady blink (approx. 3 per second)
4 fast blinks, pause (repeats)
2 fast blinks, pause (repeats)
To administer the RAID disk drives and the SAF-TE card, use the Mylex RAID configuration
utility as described in the Mylex documentation delivered with the system.
Removable Disk Drive LEDs
Disk Drive Status
No error
Disk drive rebuild stopped or disk drive is faulty
Disk drive rebuild in progress
Disk drive identification in progress
Disk drive experienced a predicted fault
Disk drive is a hot spare