HP Array Controller HSG V8.7 Software - Manual (Page 292)

B–20 HSG80 User’s Guide
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 RAIDset was initialized) of the remaining
members of the RAIDset. If more than one disk drive in the spareset is
the correct size, the controller selects a disk drive giving the best
performance.
Specify POLICY=BEST_PERFORMANCE to choose a replacement
disk drive from the spareset resulting in the best performance of the
RAIDset. The controller attempts to select a disk on a different port
than existing RAIDset members. If there is more than one disk drive in
the spareset matching the best performance criteria, the controller
selects the disk drive that equals or exceeds the base member size of the
RAIDset.
Specify NOPOLICY to prevent the controller from automatically
replacing a failed disk device. This RAIDset operates in a reduced state
until you select either POLICY=BEST_PERFORMANCE or
POLICY=BEST_FIT, or manually place a member in the RAIDset. See
“SET RAIDset-name,” page B–133, for more information regarding
this procedure.
RECONSTRUCT=FAST
RECONSTRUCT=NORMAL (Default)
Sets the speed at which the controller reconstructs data to a new
RAIDset disk that replaces the failed disk.
Specify FAST to allow the reconstruct process to take precedence over
other controller operations. When the RECONSTRUCT=FAST switch
is specified, the controller uses more resources to perform the
reconstruction. Reconstruction takes less time, but overall controller
performance is reduced during reconstruction.
Specify NORMAL to balance other controller operations with the
reconstruct operation. The controller uses relatively few resources to
perform the reconstruct process; therefore, there is little impact on
performance.