Chapter 3: System Interface
3-3
Power: Indicates power is being suppli ed to the system's power supply
units. This LED should normally be illuminated when the system is operating.
3-4 Drive Carrier LEDs
SATA Drives (1041M-T2)
Green: Each Serial ATA drive carrier has a green LED. When illuminated,
this green LED (on the front of the SATA drive carrier) indicate s drive activity. A
connection to the SATA backplane enables this LED to blink on and off when that
particular drive is being ac cessed. 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 (1041M-82)
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.