HP StorageWorks Storage System Scripting Utility reference (September 2005)

Figure 5 Menu map (part E)

ADD

Use the AD D commands to create new arrays, folders, disk groups, DR Groups, virtual disks, snapshots,

snapclones, as well as to add LUN s and hosts within the EVA.

NOTE:

Creating DR gro

ups and snapshots of virtual disks is dependent on your licensing. See the documentation

that came with

your hardware for more information.

ADD CONTAINER

Use the ADD CONTAINER command to reserve disk space to cre ate copies of virtual disks (snapclones).

You can create containers and reserve the space before they are needed for a snapclone. Reserving

space allows you to quickly and safely create a copy because the space for the c opy is already reserved

and available. You must specify the size of the container when you create it (there is no default).

After the co py is created, it b ec om es another virtual disk. You c an reverse the process and turn a virtual

disk back into a container using the SET VDISK CHANGE_INTO_CONTAINER command.

If the disk group is not speciﬁed, it is created in the default disk group. If the default disk group does

not exist, an error message will b e generated.

NOTE:

When you delete a container, the option WAIT_FOR_COMPLETION is ignored. After deletion, the

container may still appear during an LS c ommand. This is because the container is deleted in the

background and will continue to appear until it is fully deleted (this is an asynchronous only operation).

Syntax

ADD CONTAINER <container_name> SIZE=<n>

Switches

The follow

ing switches are available with the AD D CONTAINER command.

DISK_GROUP=

This is the name of the disk group where you want to cre ate the container.

REDUNDANCY=

The amount

of data protection set when creating the virtual disk. If not speciﬁed, the default is Vraid1.

• Vraid0—Provides no data p rotection. It distributes data among its member disks into stripes

and uses all members to process I/O requests. This method has no overhead associated with

duplication of information and provides the highest performance.

• Vraid1—P

rovides the highest level of data protection but uses the most space. It duplicates da ta

written

to one disk onto a backup disk. In a multidisk conﬁguration, V raid1 mirrors each pair of

disks to each other. These disk pairs can then be striped to create a virtual disk.

• Vraid5—Provides a mod erate level of data protection. This method distributes the parity

informa

tion among all disk members. If one drive fails, the failed disk can be recreated af ter it is

replaced.

Utility command reference