Compaq External RAID Controller & Subsystem Infortrend, Руководство по эксплуатации

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Advanced Configurations
9-6
There are four selections related to the S.M.A.R.T. functions in
firmware:
Disable:
Disable S.M.A.R.T.-related functions
Detect Only:
S.M.A.R.T. function enabled, controller will send command to
enable all drives' S.M.A.R.T. function, if a drive predicts a problem,
controller will report the problem in the form of an event log.
Perpetual Clone:
S.M.A.R.T. function enabled, controller will send command to
enable all drives' S.M.A.R.T. function. If a drive predicts a problem,
controller will report in the form of an event log. Controller will
clone the drive if there is a Dedicated/Global spare available. The
drive with predicted errors will not be taken off-line, and the clone
drive will still behave as a standby drive.
If the drive with predicted errors fails, the clone drive will take over
immediately. Under the circumstance that the problematic drive is
still working and another drive in the same logical drive should fail,
the clone drive will resume the role of a standby spare and start to
rebuild the failed drive immediately. This is to prevent a fatal drive
error if yet another drive should fail.
Clone + Replace:
Controller will enable all drives' S.M.A.R.T. function. If a drive
predicts a problem, controller will report in the form of event log.
Controller will then clone the problematic drive to a standby spare
and take the problematic drive off-line as soon as the cloning
process is completed.
NOTE:
• If you are using drives of different brands in your RAID system, as long as
they are ANSI-SCSI Informational Exception Control (IEC) document
X3T10/94-190 compatible, it should not be an issue working with the
controller.