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Snapshots enable point-in-time recovery of volumes. This article describes how to create a new volume from a snapshot by using Azure NetApp Files.
Considerations
Depending on the size of the selected volume snapshot to restore, the operation may take minutes to hours to complete.
To avoid extensive restore times, only perform one "restore snapshot to new volume" operation at a time. For this reason, chained restore operations, such as restoring a snapshot to a new volume while the originating volume itself is being restored from a snapshot, should be avoided as well. Alternatively, consider using cross-zone replication within the same zone to create an independent volume copy.
Cross-region replication and cross-zone replication operations are suspended and cannot be added while restoring a snapshot to a new volume.
Only enable backup, snapshots, and replication (cross-region or cross-zone) on the new volume after it's fully restored from the snapshot. To ensure the volume is fully restored, check the progress indicator in the volume details.
If you use the cool access feature, see Manage Azure NetApp Files storage with cool access for more considerations.
Considerations for the Elastic service level
The new volume must be in the same Elastic capacity pool that contains the source snapshot.
When restoring a snapshot to a new volume in the Elastic Zone-redundant service level, the volume quota is set to 1 GiB instead of the source volume's quota. You must manually modify the volume's quota to the correct value.
Steps
Follow the steps for the appropriate service level.
Navigate to the volume hosting the snapshot you want to restore. Select Snapshots from the Volume page to display the snapshot list.
Right-click the snapshot to restore and select Restore to new volume from the menu option.
In the Create a Volume page, provide information for the new volume.
The new volume uses the same protocol that the snapshot uses.
For information about the fields in the Create a Volume page, see:By default, the new volume includes a reference to the snapshot that was used for the restore operation from the original volume from Step 2, referred to as the base snapshot. This base snapshot does not consume any additional space because of how snapshots work. If you don't want the new volume to contain this base snapshot, select Delete base snapshot during the new volume creation.
Select Review + create then Create.
The Volumes page displays the new volume to which the snapshot restores. Refer to the Originated from field to see the name of the snapshot used to create the volume. The volume can be used by NFS and SMB clients immediately while the restore operation is completing in the background.
