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Compaq HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide
Switches
COPY=FAST
COPY=NORMAL (Default)
Sets the speed at which the controller copies data to a new member from normal
mirrorset members when data is being mirrored to the storageset’s disk drives.
Specify COPY=FAST to allow the creation of mirrored data to take precedence over
other controller operations. When you specify COPY=FAST, the controller uses more
resources to create the mirrored data, and copying takes less time. However, overall
controller performance is reduced.
Specify COPY=NORMAL when operations performed by the controller should take
priority over the copy operation. If you specify COPY=NORMAL creating the
mirrored data has a minimal impact on performance.
POLICY=BEST_FIT
POLICY=BEST_PERFORMANCE
NOPOLICY (Default)
Sets the selection criteria the controller uses to choose a replacement disk from the
spareset when a mirrorset member fails. If DT_SUPPORT is enabled, no policy can
be selected.
Specify POLICY=BEST_FIT to choose a replacement disk drive from the spareset
that equals or exceeds the base member size (smallest disk drive at the time the
mirrorset was initialized). If there is more than one disk drive in the spareset that
meets the criteria, the controller selects a disk drive with the best performance. This
switch is not valid if DT_SUPPORT is enabled.