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SAF-TE
The DEU is designed to be compliant with SAF-TE
(SCSI Accessed Fault-Tolerant Enclosure) specification
version 1.0. Under this specification, the enclosure is
implemented as an assignable SCSI target ID. This
allows standardized alert detection and status
reporting using the SCSI bus as the underlying
transport mechanism.
Disk drives, power supplies, cooling fans and
temperature are continually monitored and these
conditions are then reported over the SCSI bus to the
host system. When used in conjunction with RAID
management software, the DEU can alert the user or
LAN administrator of impending or imminent
conditions requiring their attention. These alert
notifications can be made via network broadcast or
electronic pages, in addition to the LEDs and Operator
Control Panel alerts found on the DEU. This allows the
administrator to react to conditions that could normally
go unnoticed until data loss.