Creating a Snapshot Group

Once you have created snapshot sets, you have the option to associate one or more snapshot sets with a group. The sets in the group must all reside on the same storage server. Snapshot groups are used to perform commands and functions on multiple snapshot sets simultaneously.  A snapshot set can be a member of only one group at a time.

Creating snapshot groups is optional and not necessary to use Snapshot. First, create the group and then add previously-created sets to the group. Refer to Creating a Snapshot Set, if necessary.

Before executing group commands you should verify that the snapshot sets in the group are in the correct logical state before issuing the command. For example, before issuing a groupenable command, make sure all the sets in the group are in the disabled state. Group commands are available through the Snapshot Manager and the CLI (command line interface) commands.

Snapshot commands issued to the specified group affect all snapshot sets assigned to that group. Virtually all actions available for a single snapshot set can be done at the group level. The exception is setting delays (i.e., setcompleteimagedelay).

Group actions can complete either in success (actions were successfully performed on all group members), or with mixed results. If the response from a group action does not indicate success you should check the results of the activity for each member of the group using either the groupgetstatus or the individual getsnapstatus type calls.

Follow these steps to create a snapshot group:

  1. Open the Snapshot Manager snap-in.
  2. Right-click the SnapshotGroups add-in and choose New Snapshot Group.
    SANmelody newsnapshotgroup Creating a Snapshot Group
  3. Enter a name for the new Snapshot Group in the dialog box that opens and click OK.
    SANmelody addsnapshotgroupdialog Creating a Snapshot Group
  4. Apply the configuration.
Adding a Snapshot set to the group:
  1. In the Snapshot Manager snap-in, select SnapshotGroups in the console tree.
  2. In the upper-right pane, select a Snapshot Group and select Add Snapshot Set from the shortcut menu.
    SANmelody addsnapshotset Creating a Snapshot Group
  3. In the Add Snapshot Set dialog box Select a Snapshot set to add and click OK.
    SANmelody addsnapshotsetdialog Creating a Snapshot Group
  4. Repeat to add more sets to the group.
  5. Apply the configuration.
Related Topics:

Removing Snapshot Sets from Groups

Snapshot Commands

Deleting a Snapshot Group

Creating a Snapshot Group