HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Command Line Interface Reference Guide (EK-G80CL-RA. C01, March 2005)

CLI Command Descriptions
68 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Command Line Interface Reference Guide
Switches
The following switches support the ADD MIRRORSETS command:
■ COPY
■ POLICY and NOPOLICY
■ READ_SOURCE
These switches are described in the following paragraphs.
COPY=FAST
COPY=NORMAL (default)
Sets the speed at which the controller copies data to a new member from normal
mirrorset members:
■ Specify COPY=FAST to allow the creation of mirrored data to take
precedence over other controller operations. If 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 if 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 controller performance.
POLICY=BEST_FIT
POLICY=BEST_PERFORMANCE (default)
NOPOLICY
Sets the selection criteria the controller uses to choose a replacement disk from the
spareset if 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 meets the criteria, the controller selects a disk drive with the
best performance.
■ Specify POLICY=BEST_PERFORMANCE to allow the software to choose a
replacement disk drive from the spareset with the best performance. The
controller attempts to select a disk on a different port than existing mirrorset
members. If more than one disk drive in the spareset matches the best
performance criteria, the controller selects a disk drive that equals or exceeds
the base member size.