Hot Spares
Hot spares are only employed in arrays with redundancy, for
example, RAID levels 1, 3, 5, 10, 30, and 50.
A hot spare connected to a specific ADAC Ultra2 S466
controller can only be used to rebuild a drive that is
Chapter 2 Introduction to RAID
A hot spare is an extra, unused disk drive that is part of the
disk subsystem. It is usually in standby mode, ready for
service if a drive fails. Hot spares permit you to replace
failed drives without system shutdown or user intervention.
ADAC Ultra2 S466 implements automatic and transparent
rebuilds using hot spare drives, providing a high degree of
fault tolerance and zero downtime. The ADAC Ultra2
S466 RAID Management software allows you to specify
physical drives as hot spares. When a hot spare is needed,
the ADAC Ultra2 S466 controller assigns the hot spare that
has a capacity closest to and at least as great as that of the
failed drive to take the place of the failed drive.
Important
connected to the same controller.
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