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Elastic Compute Service:ApplyAutoSnapshotPolicy

Last Updated:May 07, 2026

Applies an automatic snapshot policy to one or more disks.

Operation description

  • Each disk supports up to 10 automatic snapshot policies.

  • If a target disk already has an automatic snapshot policy, this operation adds the new policy without replacing the existing ones.

Note

To avoid unexpected charges, make sure to cancel any automatic snapshot policies that you no longer need.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

ecs:ApplyAutoSnapshotPolicy

update

*Disk

acs:ecs:{#regionId}:{#accountId}:disk/{#diskId}

*AutoSnapshotPolicy

acs:ecs:{#regionId}:{#accountId}:snapshotpolicy/{#snapshotpolicyId}

None None

Request parameters

Parameter

Type

Required

Description

Example

regionId

string

Yes

The ID of the region where the automatic snapshot policy and target disks are located. You can call the DescribeRegions operation to get the latest list of Alibaba Cloud regions.

cn-hangzhou

autoSnapshotPolicyId

string

Yes

The ID of the automatic snapshot policy.

sp-bp14yziiuvu3s6jn****

diskIds

string

Yes

A JSON array of one or more disk IDs.

["d-bp14k9cxvr5uzy54****", "d-bp1dtj8v7x6u08iw****", "d-bp1c0tyj9tfli2r8****"]

Response elements

Element

Type

Description

Example

object

RequestId

string

The ID of the request.

473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

Examples

Success response

JSON format

{
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E"
}

Error response

JSON format

{
    "RequestId":"F3CD6886-D8D0-4FEE-B93E-1B73239673DE"
}

Error codes

HTTP status code

Error code

Error message

Description

400 DiskCategory.OperationNotSupported The type of the specified disk does not support creating a snapshot. The operation is not supported by the current disk category.
400 PartofDiskCategory.OperationNotSupported The types of some disks in the disk list do not support creating snapshots. Some of the specified disks do not support this operation.
400 InvalidAutoSnapshotPolicyId.NotFound The specified AutoSnapshotPolicyId does not exist. The specified automatic snapshot policy does not exist.
403 ParameterInvalid The specified RegionId parameter is invalid. The specified region ID is invalid.
403 InvalidAccountStatus.NotEnoughBalance Your account does not have enough balance.
403 InvalidAccountStatus.SnapshotServiceUnavailable Snapshot service has not been opened yet. The operation is not supported while the snapshot service is not activated.
403 InvalidOperation.SnapshotAlreadyCreatedUnsupported The current disk already has snapshots created by non-promotional activities. Snapshot policies bound to promotional activities are not supported. The current disk already has snapshots created by non-promotional activities. Snapshot policies bound to promotional activities are not supported.
403 QuotaExceed.AppliedAutoSnapshotPolicyQuota The number of auto snapshot policies applied to the specified disk %s has exceeded the quota %s. Please cancel any unused policies and try again. The number of auto snapshot policies applied to the specified disk has exceeded the quota. Please cancel any unused policies and try again.
403 InvalidOperation.AutoSnapshotPolicyConflict The disk %s cannot apply the auto snapshot policy of promotional activities and other policies at the same time. The disk cannot apply the auto snapshot policy of promotional activities and other policies at the same time.
404 ParameterInvalid The specified automatic snapshot policy does not exist.
404 InvalidDiskId.NotFound The specified disk does not exist in the region. The specified disk does not exist in the current region.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.