Chapter 3: System Interface
3-3
Power
Indicates power is being supplied to the system's power supply units. This LED
should normally be illuminated when the system is operating.
3-4 Drive
Carrier
LEDs
SCSI Drives (5025M-4)
Green:
When illuminated, the green LED on the front of the SCSI drive carrier
indicates drive activity. A connection to the SCSI SCA backplane enables this
LED to blink on and off when that particular drive is being accessed.
Red:
A SAF-TE compliant backplane is needed to activate the red LED, which
indicates a drive failure. (A SAF-TE compliant SCSI backplane is standard on the
5025M-4.) If one of the SCSI drives fail, you should be notifi ed by your system
management software. Please refer to Chapter 6 for instructions on replacing
failed SCSI drives.
SATA Drives (5025M-T)
Green:
Each Serial ATA drive carrier has a green LED. When illuminated, this
green LED (on the front of the SATA drive carrier) indicates drive activity. A
connection to the SATA backplane enables this LED to blink on and off when
that particular drive is being accessed. Please refer to Chapter 6 for instructions
on replacing failed SATA drives.
Red:
The red LED to indicate an SATA drive failure. If one of the SATA drives
fail, you should be notifi ed by your system management software. Please refer
to Chapter 6 for instructions on replacing failed SATA drives.
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