You can apply automatic snapshot policies to disks. After an automatic snapshot policy is applied to a disk, snapshots are automatically created for the disk based on the policy.
Prerequisites
At least one automatic snapshot policy is created.
Method 1: Apply or disable an automatic snapshot policy on the Snapshots page
On the Snapshots page of the ECS console, you can apply or disable an automatic snapshot policy on a system or data disk.
- Log on to the ECS console.
- In the left-side navigation pane, choose .
- In the top navigation bar, select a region.
- On the Snapshots page, click the Automatic Snapshot Policies tab.
- On the Automatic Snapshot Policies tab, find the target automatic snapshot policy and click Apply or Disable Policy in the Actions column.
- In the Apply or Disable Automatic Snapshot Policy dialog box that appears, click the Disks Without Policy Applied tab.
- If you want to apply the automatic snapshot policy, click the Disks Without Policy Applied tab, find the disk to which you want to apply the policy, and then click Apply Policy in the Actions column. You can also select multiple disks and click Apply Policy in the lower part of the dialog box.
- If you want to disable the automatic snapshot policy, click the Disks with Policy Applied tab, find the disk on which you want to disable the policy, and then click Disable Policy in the Actions column. You can also select multiple disks and click Disable Policy in the lower part of the dialog box.
- If you want to apply the automatic snapshot policy, click the Disks Without Policy Applied tab, find the disk to which you want to apply the policy, and then click Apply Policy in the Actions column. You can also select multiple disks and click Apply Policy in the lower part of the dialog box.
- In the upper-right corner of the Apply or Disable Automatic Snapshot Policy dialog box, click the
icon to close the dialog box.
Method 2: Apply an automatic snapshot policy when you create an ECS instance
When you create an ECS instance, you can apply an automatic snapshot policy to a system or data disk.
Method 3: Apply an automatic snapshot policy when you create a disk
You can apply an automatic snapshot policy to a disk when you create the disk.
Method 4: Apply or disable an automatic snapshot policy on the Disks page
On the Disks page of the ECS console, you can apply or disable an automatic snapshot policy on a system or data disk.
Result
After you apply or disable an automatic snapshot policy on a disk, you can view the changed number of disks to which the policy is applied in the Applied Disks column corresponding to the policy on the Automatic Snapshot Policies tab.

- auto2.0: the automatic snapshot.
- yyyyMMdd: the date when the snapshot is created. yyyy stands for year, MM for month, and dd for date.
- SnapshotPolicyId: the ID of the automatic snapshot policy used.