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
217HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Command Line Interface Reference Guide
■ 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 performance.
MEMBERSHIP=number-of-members
Sets the nominal number of mirrorset members to the number you specify for
the number-of-members value. A maximum of six members can be
specified.
Note: No other switches can be set after you specify the MEMBERSHIP switch.
If you increase the number of members, the controller automatically adds disk
drives from the spareset to the mirrorset until the new number of members is
reached, or there are no more suitable disk drives in the spareset.
If you increase the number of members and the NOPOLICY switch is
specified, the REPLACE=disk-name switch must be specified to bring the
mirrorset up to the new nominal number of members.
You cannot set the nominal number of members lower than the actual number
of members. Specify the REMOVE switch to reduce the number of disk drives
from the mirrorset.
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 meet the criteria, the controller selects a
disk drive with the best performance.