APC SGI 15000 RAID - Manual (Page 108)

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4.2.3 Component Failure on Enclosures
The controller implements the SCSI Enclosure Services (SES) protocol to communicate with its drive
enclosures. If your enclosures provides SES communications, then enclosure status information of the ,
including power supply, fan, and presence of drive, will be obtained and evaluated. If a change in status
is found, an SES message is displayed on your console
( Figure 4–7 ) .
Figure 4–7 Example of SES Message
If your enclosures provide redundant SES communication paths, the message will be reported twice.
“EncID” is the Enclosure Identifier of the enclosure that reported the failure. The last four digits of the
WWN is the last four digits of the enclosure’s serial number.
EncID: 50001FF1:3E081000 Power Supply 1: OK