Specifications

7–112 CLI Commands
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:
■ The replacement policy is set to NOPOLICY
■ 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.