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ENS:DescribeSDG

Last Updated:May 15, 2026

Retrieves the basic information for a Shared Data Group (SDG), including its node preloading details.

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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

ens:DescribeSDG

none

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

SDGIds

array

No

The IDs of the SDGs. If omitted, all SDGs are queried.

string

No

The SDG ID.

["sdg-1", "sdg-2", "sdg-3"]

PageNumber

integer

No

The page number to return.

1

PageSize

integer

No

The page size.

Default value: 10.

10

SameDiskId

boolean

No

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

F3B261DD-3858-4D3C-877D-303ADF374600

SDGs

array<object>

A list of SDGs.

array<object>

AvaliableRegionIds

array<object>

The nodes where snapshots of the SDG are available.

object

CreationTime

string

The time when the SDG was created on the node.

2023-02-27 15:13:26

RegionId

string

The node ID.

cn-hangzhou-26

SnapshotId

string

The snapshot ID.

sp-517qu0tgznrg622he7nf4wd7n

Status

string

The status of the SDG on the node. Valid values:

  • sdg_making: Creating

  • sdg_saving: Saving

  • sdg_copying: Synchronizing across nodes

  • failed: Failed

  • success: Succeeded

success

CreationInstanceId

string

The ID of the instance from which the SDG was created.

aic-5x20dyeos****

CreationDiskType

string

The disk type of the source disk from which the SDG was created.

standard

CreationTime

string

The time when the SDG was first created.

2023-02-27 15:07:21

Description

string

The description of the SDG.

Test SDG

ParentSDGId

string

The ID of the source SDG for incremental creation. This is the value of the FromSDGId that you pass when you call the CreateSDG operation.

sdg-xxxxx

SDGId

string

The ID of the SDG.

sdg-30e1fdba7196bc****

Size

integer

The size of the SDG, in GB.

20

Status

string

The creation status of the SDG. Valid values:

  • sdg_making: Creating

  • sdg_saving: Saving

  • failed: Failed

  • success: Succeeded

success

PerformanceLevel

string

The sharing ratio of the SDG.

100

UpdateTime

string

The time when the SDG was last updated.

2023-02-27 16:04:39

PreloadInfos

array<object>

The preloading configuration.

object

RegionId

string

The node ID.

cn-hangzhou

Namespace

string

The namespace.

test-20000

RedundantNum

integer

The number of redundant copies for faster responses from shared mounts.

2

DiskType

string

The disk type of the redundant shared disks.

standard

CreationTime

string

The time when the entry was created, displayed in UTC and in the ISO 8601 format: yyyy-MM-ddTHH:mm:ssZ.

2023-02-16T06:18:40Z

UpdateTime

string

The time when the status of the preload entry was last updated.

2021-01-22T08:17Z

CreationRegionId

string

The ID of the node where the SDG was created.

cn-hangzhou-26

BillingType

string

The billing type.

Open

BillingCycle

string

The billing cycle of the shared disk.

Day

PageNumber

integer

The page number.

1

PageSize

integer

The number of entries returned on each page.

10

TotalCount

integer

The total number of entries that match the query.

49

Examples

Success response

JSON format

{
  "RequestId": "F3B261DD-3858-4D3C-877D-303ADF374600",
  "SDGs": [
    {
      "AvaliableRegionIds": [
        {
          "CreationTime": "2023-02-27 15:13:26",
          "RegionId": "cn-hangzhou-26",
          "SnapshotId": "sp-517qu0tgznrg622he7nf4wd7n",
          "Status": "success"
        }
      ],
      "CreationInstanceId": "aic-5x20dyeos****",
      "CreationDiskType": "standard",
      "CreationTime": "2023-02-27 15:07:21",
      "Description": "Test SDG",
      "ParentSDGId": "sdg-xxxxx",
      "SDGId": "sdg-30e1fdba7196bc****",
      "Size": 20,
      "Status": "success",
      "PerformanceLevel": "100",
      "UpdateTime": "2023-02-27 16:04:39",
      "PreloadInfos": [
        {
          "RegionId": "cn-hangzhou",
          "Namespace": "test-20000",
          "RedundantNum": 2,
          "DiskType": "standard",
          "CreationTime": "2023-02-16T06:18:40Z",
          "UpdateTime": "2021-01-22T08:17Z"
        }
      ],
      "CreationRegionId": "cn-hangzhou-26",
      "BillingType": "Open",
      "BillingCycle": "Day"
    }
  ],
  "PageNumber": 1,
  "PageSize": 10,
  "TotalCount": 49
}

Error codes

HTTP status code

Error code

Error message

Description

400 Interface.Call.Failed %s. Request failed
400 Parameter.Invalid The parameter is invalid. Please check your parameters and try it again. The parameter is invalid.
400 NoPermission Permission denied.
400 InvalidParameter.%s The specified field %s invalid. Please check it again.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.