CreateSnapshot - Simple Application Server - Alibaba Cloud Documentation Center

Creates a snapshot for a disk.

Operation description

A snapshot is a point-in-time backup of a disk. Snapshots can be used to back up data, recover data after misoperations on servers, recover data after network attacks, and create custom images.

Note

You are not charged for creating snapshots in Simple Application Server.

Precautions

You can create up to three snapshots for each simple application server.
The maximum number of snapshots that you create per Alibaba Cloud account is triple of the number of simple application servers that are created. The value cannot be greater than 15.
If a simple application server is automatically released due to expiration, the snapshots created for the server are deleted.
If you reset a simple application server after you create a snapshot for the server, the snapshot is retained but cannot be used to restore the disks of the server.

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Test

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

swas-open:CreateSnapshot

create

*Snapshot

acs:swas-open:{#regionId}:{#accountId}:snapshot/*

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the simple application server to which the disk is attached.	cn-hangzhou
DiskId	string	Yes	The disk ID.	d-bp18kjxg9ebrhsgi****
SnapshotName	string	Yes	The snapshot name. The name must be 2 to 50 characters in length. It must start with a letter but cannot start with `http://` or `https://`. The name can only contain letters, digits, colons (:), underscores (_), periods (.), and hyphens (-).	test-SnapshotName
ClientToken	string	No	The client token that is used to ensure the idempotence of the request. You can use the client to generate the token, but you must make sure that the token is unique among different requests. The value of ClientToken can contain only ASCII characters and cannot exceed 64 characters in length. For more information, see How to ensure idempotence.	123e4567-e89b-12d3-a456-426655440000
Tag	array<object>	No	The tags that you want to add to the snapshot. You can specify up to 20 tags.
	object	No	The tags of the snapshot.
Key	string	No	The key of the tag to add to the snapshot. Valid values of N: 1 to 20. The tag key cannot be an empty string. The tag key can be up to 64 characters in length and cannot contain http:// or https://. The tag key cannot start with acs: or aliyun.	TestKey
Value	string	No	The value of the tag to add to the snapshot. Valid values of N: 1 to 20. The tag value can be an empty string. The tag value can be up to 64 characters in length and cannot contain http:// or https://.	TestValue
ResourceGroupId	string	No	The ID of the resource group.	rg-aek2bti7cf7****

Response elements

Element	Type	Description	Example
	object
SnapshotId	string	The snapshot ID.	s-bp16oazlsold4dks****
RequestId	string	The request ID.	20758A-585D-4A41-A9B2-28DA8F4F534F

Examples

Success response

JSON format

{
  "SnapshotId": "s-bp16oazlsold4dks****",
  "RequestId": "20758A-585D-4A41-A9B2-28DA8F4F534F\t"
}

Error codes

HTTP status code	Error code	Error message
400	InvalidRemark.ValueNotSupported	The specified parameter Remark is invalid.
400	InvalidRemark.Duplicate	The specified Remark already exists.
400	IncorrectStatus	The state of the disk or instance does not currently support snapshot creation.
400	InvalidSnapshotName.ValueNotSupported	The specified SnapshotName is invalid.
400	InvalidSnapshotName.Duplicate	The specified SnapshotName already exists.
500	InternalError	An error occurred while processing your request.
403	SnapshotLimitExceed	The maximum number of snapshots in an instance is exceeded.
403	IncorrectDiskStatus.CreatingSnapshot	A snapshot is being created in the specified disk. Please try again later.
404	InvalidDiskId.NotFound	The specified DiskId does not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.