User`s guide
ADD MIRRORSET
ADD MIRRORSET
Binds a set of physical devices to a mirrorset specified by a container name.
Format
ADD MIRRORSET
container-name disk-device-name1 [disk-device-nameN]
Parameters
container-name
Specifies the name that is used to refer to this mirrorset container. This name
is referred to when creating mirrorsets. The name must start with a letter
(A–Z) and can then consist of up to eight more characters made up of letters
A–Z, numbers 0–9, periods (.), dashes (-), or underscores (_), for a total of nine
characters.
disk-device-name1 disk-device-nameN
The disk drives that make up this mirrorset. A mirrorset is made up of from 1 to
6 disk drives.
Description
Adds a mirrorset to the list of known mirrorsets and names the mirrorset. The
number of members is set to the number of devices specified in the command.
If the physical devices have never been initialized as a mirrorset, then a CLI
INITIALIZE command must be issued for the mirrorset prior to binding the
mirrorset to a higher level storage container.
Qualifiers
COPY=
copy_speed
The COPY qualifier allows you to specify the speed at which mirrorset copies are
performed. You may specify either NORMAL or FAST.
NORMAL uses relatively few controller resources to perform the copy, and has
little impact on controller performance.
FAST uses more controller resources, which reduces the time it takes to complete
the copy, but also reduces overall controller performance.
POLICY=BEST_FIT
POLICY=BEST_PERFORMANCE (Default)
NOPOLICY
The POLICY qualifier specifies the replacement policy to be used when a
mirrorset member within the mirrorset fails.
BEST_FIT gives highest priority to finding a replacement device within the
spareset that most closely matches the sizes of the remaining members of the
mirrorset. If more than one device in the spareset is the correct size, the device
that gives the best performance is selected.
B–6 Command Line Interpreter