Chapter 3: System Interface
3-3
Power Fail:
Indicates a power supply module has failed. This should be
accompanied by an audible alarm. A backup power supply module will take the
load and keep the system running but the failed module will need to be replaced.
Refer to Chapter 6 for details on replacing the power supply. This LED should be
off when the system is operating normally.
3-4 Drive
Carrier
LEDs
SATA Drives (4021M-T2R+)
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.
SCSI Drives (4021M-82R+)
Each SCSI drive carrier has two LEDs.
Green:
When illuminated, the green LED on the front of the SCSI drive car-
rier 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:
The SAF-TE compliant backplane activates the red LED to indicate a
drive failure. 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.
Содержание AS-4021M-82R Plus
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