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Creating a Disk from a Snapshot

Updated on 2024-12-26 GMT+08:00

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

Snapshot Type

Notes and Constraints

Snapshot function in OBT (view supported regions)

  • Batch disk creation from a snapshot is not supported.
  • 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)

  • A standard snapshot with Instant Snapshot Restore not enabled can only be used to create disks when the snapshot status is Available.
  • If Instant Snapshot Restore is enabled for a standard snapshot, when its upload is in progress, you can use it to create a disk 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.
  • A standard snapshot can only be used to batch create disks when its upload is complete.
  • After a standard snapshot has been uploaded, you can change the device type (SCS or VBD), encryption attribute, AZ, or type of the disks when using this snapshot to create disks on the console.
    NOTE:

    You can view the snapshot upload progress in the status column. If there is a progress bar, the upload is still in progress. After the progress bar disappears, the upload is complete.

Creating an EVS Disk from a Snapshot

  1. Log in to the 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.

    NOTE:

    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.

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