User guide

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SCA818S Backplane User’s Guide
D: GEM 318 (SAF-TE: SCSI Accessed Fault-Tolerant Enclosures)
This chip allows the system to use a set of pre-defi ned SCSI commands to monitor
the status of disk drives and provide disk drive information to the user through
LED indicators and buzzers. (*Note: This function is available only when a RAID
controller with a RAID set is present and enabled. Please refer to the table below
for the information on SAF-TE LED Indicators
.)
SAF-TE LED Indicators
LED# Location Description
D4 Front Overheat or Drive Failure
(red light flashing, buzzer: on)
D5 Rear SCA#0 Fail LED
(red light flashing, buzzer: on)
D6 Rear SCA#1 Fail LED
(red light flashing, buzzer: on)
D16 Rear SCA#2 Fail LED
(red light flashing, buzzer: on)