Extend the retention period of a snapshot - Elastic Compute Service

Extend or permanently retain snapshots with custom retention periods before they expire.

Note

When a snapshot has 3 days or fewer left, the Retention Period column highlights Released After xx days.

Limitations

Permanently retained snapshots cannot be extended.
Cloud Backup snapshots cannot be extended in the ECS console. Use the Cloud Backup console to extend the retention period of a backup point.
Shared snapshots cannot be extended.
Archived snapshots cannot be extended.
You can only extend a retention period, not shorten it.

Alibaba Cloud charges standard snapshot storage fees in each region based on the snapshot size and retention period. Extending the retention period increases storage costs. See Snapshot billing.
If the Delete Automatic Snapshots While Releasing Disk attribute is enabled for a disk, its automatic snapshots are deleted when the disk is released, even if the retention period has not expired. A disk can be released manually, with its instance, or when you replace the operating system. See Enable automatic snapshots to be released with the disk.

Go to ECS console - Snapshots.
In the upper-left corner of the page, select a region and resource group.
On the Disk Snapshots tab, find the target snapshot and extend its retention period by using one of the following methods.
- In the Actions column, choose > Extend Retention Period.
- In the Retention Period column, click the icon.
Set the new retention period and click OK.

The Retention Period ranges from 1 to 65,536 days. You can only extend, not shorten, an existing retention period.

Call the ModifySnapshotAttribute API operation to extend snapshot retention programmatically.
To reduce storage costs, periodically delete snapshots that you no longer need.