Administrator Guide

• Select the base virtual disk that you want to remove from the consistency group and then select Storage > Virtual disk >
Remove From Consistency Group.
• Select the consistency group to which you want to add member virtual disks and then select Copy Services > Consistency
Group > Remove Member Virtual Disks.
3. If you selected a base virtual disk that is a member of multiple consistency groups or if you selected a consistency group from which
you want to remove member virtual disk, do one of the following:
• Select one or more consistency groups, from the Consistency groups table, that you want to remove the base virtual disk from
and then click Remove.
NOTE: You can click the Select all check box to remove the virtual disk from all the consistency groups displayed
in the table.
• Select the member virtual disks, from the Member virtual disks table, that you want to remove from the consistency group and
then click Remove.
NOTE: You can click the Select all check box to remove all the virtual disks displayed in the table.
4. Select the Delete all repositories associated with this member virtual disk if you want to delete all associated repositories that
exist for one or more member virtual disks in the consistency group.
5. Type yes in the text box and then click Delete to delete one or more member virtual disks from the consistency group.
The system removes the member virtual disks from the consistency group; they are not deleted.
Creating a snapshot virtual disk of a snapshot
image
You create a snapshot virtual disk to provide host access to a snapshot image within a snapshot group. A read-write snapshot virtual disk
has its own repository that is used to save any subsequent modifications made by the host application to the base virtual disk without
affecting the referenced snapshot image.
The snapshot virtual disk can be designated as either read-only or read-write:
• A read-only snapshot virtual disk provides a host application with READ access to a copy of the data contained in the snapshot image,
but without the ability to modify the snapshot image. A read-only snapshot virtual disk does not have an associated repository.
• A read-write snapshot virtual disk requires an associated repository to provide the host application with WRITE access to a copy of the
data contained in the snapshot image.
Snapshot Virtual Disk limitations
• You cannot create a snapshot virtual disk of a Failed base virtual disk.
• Snapshot repositories are fully resizeable. If you have the storage capacity you can increase the size of the snapshot repository to
avoid a repository full message. Conversely, if you find that the snapshot repository is larger than you need, you can reduce its size to
free up space that is needed by other logical virtual disks.
• If you create a snapshot virtual disk for a snapshot image and that snapshot image creation operation remains in a Pending state it is
due to the following conditions:
○ The base virtual disk that contains this snapshot image is a member of an asynchronous remote replication group.
○ The base virtual disk is currently in a synchronizing operation. The snapshot image creation will complete as soon as the
synchronization operation is complete.
Creating Snapshot Virtual Disk
1. From the AMW, select the Storage & Copy Services tab.
2. Do one of the following:
• Select a base virtual disk, and then select Copy Services > Snapshot Virtual disk > Create. The Select Existing Snapshot
Image or New Snapshot Image window is displayed.
• Select a base virtual disk, and then select Copy Services > Snapshot Image > Create Snapshot Virtual Disk. The Snapshot
Virtual Disk Settings window is displayed. Go to step 4.
3. If you selected a base virtual disk in step 1, choose the snapshot image for which you want to create a snapshot virtual disk. Do one of
the following:
• Select An existing snapshot image and then select a snapshot image from the snapshot image table and click Next.
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Premium feature—Snapshot Virtual Disk