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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 SCSI Drive Carrier LEDs
Each SCSI drive carrier has two LEDs.
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 to
indicate a drive failure. (A SAF-TE compliant SCSI backplane is optional on the
5013C-M8.) If one of the SCSI drives fail, you should be notified by your system
management software. Please refer to Section 6-4 for instructions on replacing
failed SCSI drives.