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File Storage NAS:CreateLifecyclePolicy

Last Updated:Jan 26, 2026

Creates a lifecycle policy.

Operation description

  • Only General-purpose NAS and CPFS for Lingjun file systems support this operation.
  • Up to 10 Auto and 100 OnDemand lifecycle policies can be created for each CPFS for Lingjun file system.
  • For general-purpose NAS file systems, up to 20 lifecycle policies can be created in each region.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • For mandatory resource types, indicate with a prefix of * .
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
nas:CreateLifecyclePolicycreate
*LifecyclePolicy
acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
FileSystemIdstringYes

The ID of the file system.

31a8e4****
LifecyclePolicyNamestringNo

The name of the lifecycle policy. The name must be 3 to 64 characters in length and must start with a letter. It can contain letters, digits, underscores (_), and hyphens (-).

Note Required for General-purpose NAS.
lifecyclepolicy_01
PathstringNo

The absolute path of the directory associated with the lifecycle policy. Only General-purpose NAS supports this parameter.

  • Single value only. The path must start with a forward slash (/) and must be a path that exists in the mount target.
Note We recommend configuring the Paths.N parameter so that you can associate the policy with multiple directories at a time.
  • Path and Paths are mutually exclusive. You must specify one.
/pathway/to/folder
LifecycleRuleNamestringNo

The management rule associated with the lifecycle policy. Only General-purpose NAS supports this parameter.

Valid values:

  • DEFAULT_ATIME_14: Files not accessed for 14 days.
  • DEFAULT_ATIME_30: Files not accessed for 30 days.
  • DEFAULT_ATIME_60: Files not accessed for 60 days.
  • DEFAULT_ATIME_90: Files not accessed for 90 days.
  • DEFAULT_ATIME_180: Files not accessed for 180 days. DEFAULT_ATIME_180 is supported only when the StorageType parameter is set to Archive.
Note
  • If an IA policy already exists for the directory, the new archive policy must have a longer transition period.

  • Only General-purpose NAS supports this parameter.

Enumeration Value:
  • DEFAULT_ATIME_14
  • DEFAULT_ATIME_30
  • DEFAULT_ATIME_60
  • DEFAULT_ATIME_90
  • DEFAULT_ATIME_180
DEFAULT_ATIME_14
StorageTypestringYes

The storage class.

  • InfrequentAccess: the Infrequent Access (IA) storage class.
  • Archive: the Archive storage class.
Note General-purpose NAS supports InfrequentAccess and Archive. CPFS for Lingjun only supports InfrequentAccess.
InfrequentAccess
PathsarrayNo

The absolute paths of the directories associated with the lifecycle policy.

stringNo

The absolute paths of the directories associated with the lifecycle policy.

Supports associating multiple directories. Each path must start with a forward slash (/) and must be a path that exists in the mount target. Valid values of N: 1 to 10.

Note
  • Path and Paths are mutually exclusive. You must specify one.
“/path1", "/path2"
DescriptionstringNo

The description of the lifecycle policy.

Format: The name must be 3 to 64 characters in length and must start with a letter. It can contain letters, digits, underscores (_), and hyphens (-).

Note Only CPFS for Lingjun supports this parameter.
Description
LifecyclePolicyTypestringNo

The policy type.

  • Auto (default): The job is automatically triggered.
  • OnDemand: On-demand execution.
Auto
TransitRulesarray<object>No

The data transition rule. Only one rule can be configured.

Note Supported only for CPFS for Lingjun file systems with LifecyclePolicyType set to Auto.
objectNo

The data transition rule. Only one rule can be configured.

Note Supported only for CPFS for Lingjun file systems with LifecyclePolicyType set to Auto.
AttributestringNo

Attribute of the rule.

Valid values:

  • Atime: the access time of the file.
Atime
ThresholdstringNo

Threshold for the rule.

Valid values:

  • If Attribute is set to Atime, this value represents the number of days since the file was last accessed. Valid values: [1, 365].
3
RetrieveRulesarray<object>No

The file data retrieval rule. Only one rule can be configured.

Note Only CPFS for Lingjun supports this parameter.
objectNo

The file data retrieval rule. Only one rule can be configured.

AttributestringNo

The attribute of the rule. Valid value:

  • RetrieveType: the retrieval method.
RetrieveType
ThresholdstringNo

The threshold of the rule. Valid values:

  • RetrieveType

    • AfterVisit: Supported when LifecyclePolicyType is Auto. Represents a best-effort recall on access.
    • All: Supported when LifecyclePolicyType is OnDemand. Represents retrieving all data.
All

Response parameters

ParameterTypeDescriptionExample
object
RequestIdstring

The request ID.

BC7C825C-5F65-4B56-BEF6-98C56C7C****
Successboolean

Indicates whether the request is successful.

Valid values:

  • true
  • false
true
LifecyclePolicyIdstring

The ID of the lifecycle policy.

lsp-bp1234567890ab****

Examples

Sample success responses

JSONformat

{
  "RequestId": "BC7C825C-5F65-4B56-BEF6-98C56C7C****",
  "Success": true,
  "LifecyclePolicyId": "lsp-bp1234567890ab****"
}

Error codes

HTTP status codeError codeError messageDescription
400OperationDenied.FileSystemNotSupportedForLifecycleThe file system does not support lifecycle.The file system does not support lifecycle.
400OperationDenied.EncryptedFileSystemNotSupportedForLifecycleThe encrypted file system does not support lifecycle.The encrypted file system does not support lifecycle.
400OperationDenied.LifecyclePolicyCountLimitExceededThe maximum number of LifecyclePolicies is exceeded.The maximum number of LifecyclePolicies is exceeded.
400InvalidLifecyclePolicy.AlreadyExistThe specified LifecyclePolicy already exists.The specified LifecyclePolicy already exists.
400InvalidParameter.PathsNumberExceedThe maximum number of Path.N for this operation is 10.The maximum number of Path.N for this operation is 10.
400InvalidFilesystemType.NotSupportThe API operation does not support the file system type.The API operation does not support the file system type.
400InvalidParameter.PathOrPathsEither Path or Paths.N must be specified.Either Path or Paths.N must be specified.
400MissingFileSystemIdFileSystemId is mandatory for this action.-
400Lifecycle.Count.ExceededThe lifecycle policy count exceeds the max limit per type per filesystem.Lifecycle policy exceeds limit.
403OperationDenied.NotSupportPaths.NYour request does not meet the gray condition. The Paths.N parameter is not supported.Your request does not meet the gray condition. The Paths.N parameter is not supported.
404InvalidFileSystem.NotFoundThe specified file system does not exist.The specified file system does not exist.
404InvalidParameter.PathNotExistThe specified path does not exist.The specified path does not exist.

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
2026-01-08The Error code has changed. The request parameters of the API has changed. The response structure of the API has changedView Change Details
2024-09-05API Description Update. The API operation is not deprecated.. The Error code has changedView Change Details
2024-03-25The Error code has changedView Change Details