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Elastic Compute Service

Auto snapshot policies

Modifying an auto snapshot policy

This topic explains how to modify an auto snapshot policy in the Volcano Engine console.

Prerequisites

You have created an auto snapshot policy. For more information, see Creating an auto snapshot policy.

Steps

In the top menu bar, select the project and region where the auto snapshot policy resides.

On the "Auto Snapshot Policies" tab, click "Modify policy" in the "Actions" column of the policy you want to manage. Then, modify the policy parameters in the box that appears. The parameters are explained below.

Parameter	Description
Policy name	Enter the name for the auto snapshot policy. Requirements: The name must start with a Chinese character, a letter or an underscore (_). The name can contain Chinese characters, letters, numbers, periods (.), underscores (_), or hyphens (-). The name must be between 1 and 128 characters long.
Creation time point	Select one or more time points to create automatic snapshots. tip Creating snapshots reduces storage performance, so we recommend doing it during off-peak hours.
Backup cycle	Select the days on which you would like auto snapshots to be created. Options: By week: Select one or more days from Monday to Sunday. By day: Specify the interval of days for the backup cycle. The valid range is between 1 and 30 days.
Retention time	Specify how long the automatic snapshots should be retained. The default retention period is 30 days. Custom retention: 1 to 65,536 days. It will be permanently retained and will not be automatically deleted until the number of automatic snapshots reaches the upper limit: The system automatically deletes the oldest snapshot when the number of automatic snapshots reaches the upper limit. warning Modifying the retention period will not affect existing snapshots. The changes only apply to new snapshots.

tip

If your auto snapshot policy is already associated with volumes, any changes you make to the policy will automatically take effect on those volumes.

Last updated: 2026.05.22 10:53:55