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Create a consistency group snapshot virtual disk that has a repository full limit set to 60 percent on a
snapshot consistency group named snapCG1 with these three members cgm1, cgm2, and cgm3, with
the following command:
create cgSnapVirtualDisk userLabel="cgSnapVirtualDisk3"
cgSnapImageID="snapCG1:oldest" repositoryFullLimit=60;
Create a read/write consistency group snapshot virtual disk with automatic repository selection on a
snapshot consistency group named snapCG1 with members cgm1, cgm2, and cgm3, with the following
command:
create cgSnapVirtualDisk userLabel="cgSnapVirtualDisk4"
cgSnapImageID="snapCG1:oldest";
Creating A Consistency Group Snapshot Image
To create a new snapshot image for each base virtual disk in snapshot consistency group, use the
create cgSnapImage command. The command will suspend all pending I/O operations to each base
virtual disk that is a member of the consistency group before creating the snapshot images. If the
snapshot image cannot be completed successfully for all of the consistency group members, this
command fails and new snapshot images are not created.
Since all members of a snapshot consistency group normally contain the same number of snapshot
images, adding a new member to a snapshot consistency group with this command create a new
member lacking previously created snapshot images. This is not an indication of an error condition.
To create a consistency group snapshot image:
create cgSnapImage consistencyGroup="consistencyGroupName"
where, consistencyGroup is the name of the consistency group for which you are creating snapshot
images.
Deleting A Snapshot Virtual Disk Or A Consistency Group Snapshot Virtual
Disk
You can use the following command to delete a snapshot virtual disk or a consistency group snapshot
virtual disk. Optionally, you can also delete the repository members.
delete cgSnapVirtualDisk ["snapVirtualDiskName"] [deleteRepositoryMembers=(TRUE
| FALSE)];
where, snapVirtualDiskName is the snapshot you want to delete. The
deleteRepositoryMembers=TRUE parameter will preserve the member virtual disks (default). Setting
the parameter to FALSE will delete the member virtual disks.
Deleting A Consistency Group Snapshot Image
You can delete the snapshot images in a consistency group. However, when you delete a consistency
group snapshot image that is associated with a consistency group snapshot virtual disk, the
corresponding snapshot virtual disk member in the consistency group snapshot virtual disk is transitioned
to a Stopped state. Being in this state means that the snapshot virtual disk member no longer has a
relationship to the snapshot group of the deleted snapshot image. A snapshot virtual disk member in a
Stopped state maintains its relationship to its consistency group snapshot virtual disk.
When a snapshot image(s) is deleted from a consistency group:
• The snapshot is deleted from the storage array.
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