4-5
Chapter 4: System Interface
connection to the SATA backplane enables this LED to blink on and off when
that particular drive is being accessed.
Red: The red LED to indicate an SAS/SATA drive failure. If one of the SAS/SATA
drives fail, you should be notified by your system management software.
SCSI Drives
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: The SAF-TE compliant backplane activates the red LED to indicate a drive
failure. If one of the SCSI drives fail, you should be notified by your system
management software.
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4-5 Power Supply LEDs and Overheat Indicators
This chassis provides several options which may include hot-swappable, cold-
swappable, and redundant power supplies. Some power supplies include an LED
in the rear with the following definitions:
450W and 650W Power Supply
650W Power Supply LEDs
State Indication
Solid Green
System is on.
Solid Amber
System is off and plugged in.
Blinking Amber
Internal temperature has reached 50C
and will shut down if tempertature
reaches 55C.
Solid Green: When illuminated, the green LED indicates that the power supply
is on.
Solid Amber: When illuminated, the amber LED indicates the power supply is
plugged in and turned off, or the system is off but in an abnormal state.
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