HP Array Controller HSG V8.7 Software - Manual (Page 351)

CLI Commands B–79
MIRROR
Creates a one-member mirrorset from a single disk. This command is
used only on disks configured as units or members of a stripeset, then
enter the ADD MIRRORSET command to create a mirrorset from disk
drives not already members of higher level containers.
After the disk drive is converted to a mirrorset, increase the nominal
number of members by entering the SET mirrorset-name
MEMBERSHIP=number-of-members command, then enter the SET
mirrorset-name REPLACE=disk-name command to add more members
to the mirrorset.
Syntax
MIRROR disk-name mirrorset-name
Parameters
disk-name
Specifies the name of the disk to convert to a one-member mirrorset.
The disk must be part of a unit.
mirrorset-name
Assigns a name for the mirrorset.
Tip It is common to name a mirrorset MIRRn, where n is a
sequentially assigned, unique identifier. Other naming conventions are
acceptable, but this naming convention presents to the user both the
type of container and its unique identifier.
Switches
COPY=FAST
COPY=NORMAL (Default)
Sets the speed at which the controller copies data to a new member
from normal mirrorset members when data is being mirrored to the
storageset’s disk drives.
Specify COPY=FAST to allow the creation of mirrored data to take
precedence over other controller operations. When you specify
COPY=FAST, the controller uses more resources to create the mirrored