Administrator Guide

When a snapshot image is deleted from a consistency group, the system performs the following actions:
• Deletes the snapshot image from the storage array.
• Releases the repository’s reserve space for reuse within the consistency group.
• Moves any member virtual disk, associated with one or more deleted snapshot images, to a Stopped state.
• Disables the member snapshot virtual disks associated with one or more deleted snapshot images.
To delete the snapshot image, do the following:
1. From the AMW, select the Storage & Copy Services tab.
2. Select the snapshot image that you want to delete from the snapshot group or consistency group and then select one of the following
menu paths to delete the snapshot image:
• Copy Services > Snapshot Image > Delete.
• Copy Services > Consistency Group > Consistency Group Snapshot Image > Delete.
The Confirm Delete window is displayed.
3. Type yes in the text box and then click Delete to delete the snapshot image.
Scheduling snapshot images
MD Storage Manager allows you to schedule regular snapshot image creation to enable file recovery, and scheduled backups. You can
create a schedule for an existing snapshot group or consistency group or when you initially create a snapshot group or consistency group.
• You can set up a schedule for a snapshot group to automatically create a snapshot image at a specific time in the future or on a
regular basis.
• You can set up a schedule for a consistency group to automatically create a snapshot image of each member virtual disk in the group
at a specific time in the future or on a regular basis.
You can create a schedule that runs daily or weekly in which you select specific days of the week (Sunday through Saturday). To make
scheduling easier, you can import an existing schedule for a snapshot group or consistency group. In addition, you can temporarily suspend
scheduled snapshot image creation by disabling the schedule. When a schedule is disabled, the scheduled snapshot image creations do not
occur.
Creating a snapshot schedule
The MD Storage Manager allows you to schedule regular snapshot image creation to enable file recovery, and scheduled backups. You can
create a schedule when you initially create a snapshot group or consistency group, or you can add one later to an existing snapshot group
or consistency group. After you create a snapshot image schedule, you can modify these and other schedule settings.
The following guidelines apply:
• Using a schedule can result in a large number of snapshot images, so be sure that you have sufficient repository capacity.
• Each snapshot group or consistency group can have only one schedule.
• Scheduled snapshot image creations do not occur when the storage array is offline or turned off.
• If you delete a snapshot group or consistency group that has a schedule, the schedule is also deleted.
The snapshot image creation operation completes as soon as the synchronization operation is complete. To cancel the pending snapshot
image creation before the synchronization operation completes, do the following:
1. From the AMW, select either the snapshot group or consistency group that contains the pending snapshot image.
2. Do one of the following:
• Copy Services > Snapshot Group > Create Snapshot Image Schedule.
• Copy Services > Consistency Group > Consistency Group Image > Create/Edit Schedule.
The Schedule Settings window is displayed.
3. Do one of the following:
• If you want to use an existing schedule, click Import settings from existing schedule. The Import Schedule is displayed.
Select the schedule you want to import from the Existing schedules table and then click Import.
• If you want to create a new schedule, define the settings appropriately for the schedule.
4. If you are creating the schedule for a snapshot group, select Create the First Snapshot Image Now to create a copy of the
associated base virtual disk at the same time the schedule is created.
5. If you are creating the schedule for a consistency group, click Enable snapshot image scheduling to enable the scheduled snapshot
image creation for the group.
6. Click Finish to create the schedule for the snapshot group or consistency group you selected.
Premium feature—Snapshot Virtual Disk
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