HP Array Controller HSG V8.7 Software - Manual (Page 395)

CLI Commands B–123
Note Normalizing members exist only when you first create a
mirrorset or when you clear lost data on a mirrored unit. The controller
recognizes the member as normal, and all other original mirrorset
members as “normalizing.” New data that is written to the mirrorset is
written to all members. The controller copies the data existing before
the mirrorset was created on the normal member to the normalizing
members. The controller recognizes the normalizing members as
normal when the mirrorset member’s blocks are all the same.
REPLACE=disk-name
Instructs the controller to add a disk member to an existing mirrorset if
the following conditions are met:
n The replacement policy is set to NOPOLICY
n The mirrorset is missing at least one member
If these conditions are met, the disk drive specified by disk-name is
added to the mirrorset specified by mirrorset-name. The nominal
number of members does not change.
The disk name used is the name given to a disk when it was added to
the configuration with the ADD DISK command.
Note Do not specify any other switches when the REPLACE= switch
is specified.
POLICY=BEST_FIT
POLICY=BEST_PERFORMANCE (Default)
NOPOLICY
Sets the selection criteria the controller uses to choose a replacement
disk from the spareset when a mirrorset member fails.
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 meet the criteria, the controller selects a
disk drive with the best performance.
Specify POLICY=BEST_PERFORMANCE to choose a replacement
disk drive from the spareset with the best performance. The controller