Administrator Guide

NOTE: Snapshot names can be up to 127 characters. Fewer characters are accepted for this eld if you type the value as
a Unicode character string, which takes up a variable number of bytes, depending on the specic character.
Modify the Snapshot Alias
You can modify the public alias (public name) for a snapshot. Some iSCSI initiators show the alias along with the iSCSI target name.
The alias can help you identify the snapshot.
If the alias is used with an iSCSI connection, the alias name follows the volume name.
1. Click Volumes.
2. Expand Volumes and then expand the volume name.
3. Select the snapshot timestamp.
4. In the Activities panel, click Modify snapshot properties to open the dialog box.
5. Click the iSCSI tab.
6. Type the new alias in the Public alias eld. Alias names can be up to 54 ASCII characters.
7. Click OK.
Modify Snapshot Permission
A snapshot can have read-only or read-write permission.
The following considerations apply:
• If you write to a snapshot, it might no longer represent the contents of the base volume at the time of snapshot creation.
• To change the permission of an online snapshot to read-only, rst set the snapshot oine.
To modify the permission for a snapshot:
1. Click Volumes.
2. Expand Volumes and then expand the volume name.
3. Select the snapshot timestamp.
4. In the Activities panel, click Set access type. The Select Access Type dialog box opens.
5. Select the permission for the snapshot (either Set read-write or Set read-only).
6. If your environment supports multiple initiators accessing a volume, you can check the Allow simultaneous connections from
initiators with dierent IQNs checkbox. This option is disabled by default.
7. Click OK.
Delete Snapshots
You can delete unwanted snapshots. If you delete a snapshot that is part of a snapshot collection or a custom snapshot collection,
the collection's Integrity status changes to incomplete.
NOTE: You must take a snapshot oine before you can delete it. To take the snapshot oine, click the snapshot’s
timestamp and click Set snapshot oine in the Activities panel.
1. Click Volumes.
2. Expand Volumes.
3. Expand the volume name and select the snapshot timestamp that you want to delete.
4. In the Activities panel, click Delete snapshot.
5. When prompted to conrm the deletion, click Yes.
Restore a Volume from a Snapshot
You can restore a volume from a snapshot, and replace the data in the current volume with the volume data at the time you created
the snapshot. The snapshot still exists after the restore operation.
238
About Backing Up and Protecting Your Data