Help Center/ Elastic Volume Service/ User Guide/ Managing EVS Snapshots/ Using EVS Snapshots/ Enabling or Disabling Instant Snapshot Restore (for Standard Snapshots)
Updated on 2025-07-30 GMT+08:00

Enabling or Disabling Instant Snapshot Restore (for Standard Snapshots)

Scenarios

After you create standard snapshots, you can only use them until the system has uploaded the snapshot data to OBS. As more data is saved to an EVS disk, the upload takes a longer time. To address this issue, you can enable Instant Snapshot Restore. Then, you no longer need to wait for the upload to complete before using a standard snapshot to roll back data or create a new disk. The rollback and creation speed is fast and does not affect data integrity.

Billing

You can use Instant Snapshot Restore for free. The snapshots you create are billed based on the storage usage of snapshot chains and the usage period. For details, see Billing for EVS Snapshots.

Constraints

  • High I/O and Common I/O disks do not support Instant Snapshot Restore.
  • You can only enable Instant Snapshot Restore when creating standard snapshots. It cannot be enabled later.
  • You can enable Instant Snapshot Restore for up to seven snapshots for a disk.
  • When Instant Snapshot Restore is enabled and snapshots are being created, you cannot disable Instant Snapshot Restore.
  • When you delete a disk whose standard snapshots have Instant Snapshot Restore enabled, the snapshots will be not deleted, but Instant Snapshot Restore will be disabled automatically.

Enabling Instant Snapshot Restore

You can only enable Instant Snapshot Restore when creating standard snapshots. It cannot be enabled later. For details, see Creating an EVS Snapshot.

Disabling Instant Snapshot Restore

  1. Sign in to the EVS console.
  2. In the navigation pane on the left, choose Elastic Volume Service > Snapshots.

    The Snapshots page is displayed.

  3. In the snapshot list, locate the target snapshot and click Disable Instant Snapshot Restore in the Operation column.
  4. In the disabled dialog box, click OK.

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