Infortrend RAID Controller Manual

10-20
The cloning progress will be completed by a notification message as
displayed below:
You may press [ESC] to clear the notification message to see the SCSI
drives’ status after the cloning process. The source drive (Channel 1
ID 5) remains as a member of logical drive “0,” and the “stand-by”
drive (Channel 1 ID 2, the dedicated/global spare drive) has become a
“CLONE” drive.
10.2.2 S.M.A.R.T. (Self-Monitoring, Analysis and
Reporting Technology )
This section provides a brief introduction to S.M.A.R.T. as one way to
predict drive failure and Infortrend’s implementations for preventing
data loss caused by drive failure.
A. Introduction
Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) is
an emerging technology that provides near-term failure prediction for
disk drives. When S.M.A.R.T. is enabled, the drive monitors
predetermined drive attributes that are susceptible to degradation
over time. If a failure is likely to occur, S.M.A.R.T. makes a status
report available so that the host can prompt the user to back up data
on the failing drive. However, not all failures can be predicted.
S.M.A.R.T. predictability is limited to the attributes the drive can
monitor which are selected by the device manufacturer based on the
attribute’s ability to contribute to the prediction of degrading or fault
conditions.
Although attributes are drive specific, a variety of typical
characteristics can be identified:
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