Creating a Disk from a Snapshot

Scenarios

You can create new disks from snapshots by either locating the target snapshot in the snapshot list and create a disk or specifying parameter Create from snapshot when creating a new disk.

Notes and Constraints

• Batch creation is not supported when disks are created from snapshots. Only one disk can be created from a snapshot at a time.

Snapshot function in OBT (view supported regions)

• A disk created from a snapshot has the same device type (SCSI or VBD), encryption attribute, AZ, region, and disk type as the snapshot's source disk.
• A snapshot whose name starts with autobk_snapshot_vbs_, manualbk_snapshot_vbs_, autobk_snapshot_csbs_, or manualbk_snapshot_csbs_ is automatically generated during backup. Such a snapshot can only be viewed. It cannot be used to create new disks.

Snapshot function in commercial use (view supported regions)

• If Instant Snapshot Restore is not enabled for a standard snapshot, you can only use it to create disks when its upload progress is complete.
• If Instant Snapshot Restore is enabled for a standard snapshot, when its upload is in progress, you can use it to create disks but cannot change the device type (SCSI or VBD), encryption attribute, AZ, and type of the new disk. They are kept the same as those of the snapshot's source disk.
• After a standard snapshot is uploaded, you can change the device type (SCSI or VBD), encryption attribute, AZ, and type of the disks as required.

Procedure

1. Log in to the management console.
2. Click in the upper left corner and choose Storage > Elastic Volume Service.

   The Elastic Volume Service page is displayed.

3. In the navigation pane on the left, choose Elastic Volume Service > Snapshots.

   The Snapshots page is displayed.

4. In the snapshot list, locate the target snapshot and click Create Disk in the Operation column.
5. Configure the disk parameters.
   

   For details, see Purchasing an EVS Disk.

   • In the condition that you do not specify a disk capacity, if the snapshot size is smaller than 10 GiB, the default capacity 10 GiB will be used as the disk capacity; if the snapshot size is greater than 10 GiB, the snapshot size will be used as the disk capacity.
   • To specify a disk capacity larger than the snapshot size, set the disk capacity in the Disk Specifications area.

6. Click Next.
7. Confirm the configuration and click Submit.
8. Make the payment and click OK.

   The disk list page is displayed.

9. In the disk list, view the disk status.

   When the disk status changes to Available, the disk is successfully created.