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File Storage NAS:DescribeAccessGroups

Last Updated:Jun 25, 2026

Queries permission group information.

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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

nas:DescribeAccessGroups

list

*AccessGroup

acs:nas:{#regionId}:{#accountId}:accessgroup/{#accessgroupName}

None None

Request parameters

Parameter

Type

Required

Description

Example

AccessGroupName

string

No

The name of the permission group.

Limits:

  • The name must be 3 to 64 characters in length.

  • The name must start with a letter and can contain letters, digits, underscores (_), or hyphens (-).

DEFAULT_VPC_GROUP_NAME

PageSize

integer

No

The number of permission groups on each page.

Valid values: 1 to 100.

Default value: 10.

2

PageNumber

integer

No

The page number of the list.

Start value (default value): 1.

1

UseUTCDateTime

boolean

No

Specifies whether the returned time is in UTC format.

Valid values:

  • true (default): The returned time is in UTC format.

  • false: The returned time is not in UTC format.

true

FileSystemType

string

No

The file system type.

Valid values:

  • standard (default): General-purpose NAS.

  • extreme: Extreme NAS.

  • cpfs: Cloud Parallel File Storage (CPFS).

Valid values:

  • standard :

    General-purpose NAS.

  • cpfs :

    Cloud Paralleled File System.

  • extreme :

    Extreme NAS.

standard

Response elements

Element

Type

Description

Example

object

AccessGroups

object

AccessGroup

array<object>

The collection of permission group information.

object

AccessGroupName

string

The name of the permission group.

DEFAULT_VPC_GROUP_NAME

Description

string

The description of the permission group.

This is a test access group.

CreateTime

string

The time when the permission group was created.

2020-01-05T16:00:00Z

AccessGroupType

string

The network type of the permission group. Valid value: Vpc.

Vpc

RuleCount

integer

The total number of rules in the permission group.

0

MountTargetCount

integer

The number of mount targets to which the permission group is attached.

0

FileSystemType

string

The type of the file system.

Valid values:

  • standard: General-purpose NAS

  • extreme: Extreme NAS

  • cpfs: CPFS

standard

RegionId

string

Region ID.

cn-hangzhou

TotalCount

integer

The total number of permission groups.

1

RequestId

string

The request ID.

2514F97E-FFF0-4A1F-BF04-729CEAC6****

PageSize

integer

The number of permission groups on each page.

2

PageNumber

integer

The page number of the list.

1

Examples

Success response

JSON format

{
  "AccessGroups": {
    "AccessGroup": [
      {
        "AccessGroupName": "DEFAULT_VPC_GROUP_NAME",
        "Description": "This is a test access group.",
        "CreateTime": "2020-01-05T16:00:00Z",
        "AccessGroupType": "Vpc",
        "RuleCount": 0,
        "MountTargetCount": 0,
        "FileSystemType": "standard",
        "RegionId": "cn-hangzhou"
      }
    ]
  },
  "TotalCount": 1,
  "RequestId": "2514F97E-FFF0-4A1F-BF04-729CEAC6****",
  "PageSize": 2,
  "PageNumber": 1
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.