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SES <strong>and</strong> SAF-TE<br />
• short for "SCSI Enclosure Services" <strong>and</strong> "SCSI<br />
Accessed Fault-Tolerant Arrays"<br />
• they're needed for one ma<strong>in</strong> reason<br />
• SCSI does not support hot-plug without<br />
either one of these devices. <strong>in</strong> the above<br />
example the <strong>in</strong>sertion of the disk <strong>in</strong> slot 1:9<br />
would go undetected without an enclosure<br />
• also provide normal temp/volt/etc <strong>sensors</strong>