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PolarDB:DescribeBackupPolicy

Last Updated:Jul 10, 2026

Queries the details of a backup policy by calling the DescribeBackupPolicy operation.

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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

drds:DescribeBackupPolicy

get

*instance

acs:drds:{#regionId}:{#accountId}:instance/{#instanceId}/db/*

None None

Request parameters

Parameter

Type

Required

Description

Example

DrdsInstanceId

string

Yes

The instance ID.

drdshbga71nn****

Response elements

Element

Type

Description

Example

object

Success

boolean

Indicates whether the operation is successful. Valid values: true: The operation is successful. false: The operation failed.

true

RequestId

string

The request ID.

8FAF3989-79CD-4A67-8FFD-97899B64SD5T

BackupPolicyDO

object

The details of the backup policy.

BackupDbName

string

This API does not return a value.

null

LogBackupRetentionPeriod

integer

The number of days for which log backups are retained.

10

DataBackupRetentionPeriod

integer

The retention period of data backups. Unit: days.

10

BackupType

string

The backup type. Valid values:

  • manual: manual backup.

  • auto: automatic backup.

auto

BackupLevel

string

The backup level. Valid values:

  • db: database level.

  • instance: instance level.

db

LocalLogRetentionHours

integer

This API does not return a value.

0

HighSpaceUsageProtection

integer

This API does not return a value.

GmtModified

integer

This API does not return a value.

0

BackupRetentionPeriod

integer

The number of days for which backups are retained.

8

BackupPolicyMode

string

The backup policy mode. Valid values:

  • DataBackupPolicy: data backup policy.

  • LogBackupPolicy: log backup policy.

DataBackupPolicy

PreferredBackupPeriod

string

The backup cycle. You can specify multiple backup cycles separated by commas (,). Valid values:

  • 1: Sunday

  • 2: Monday

  • 3: Tuesday

  • 4: Wednesday

  • 5: Thursday

  • 6: Friday

  • 7: Saturday

2

LocalLogRetentionSpace

integer

This API does not return a value.

0

BackupAppName

string

This API does not return a value.

null

PreferredBackupTime

string

The backup time range in UTC.

22:00:00-23:00:00

GmtCreate

integer

This API does not return a value.

0

BackupMode

string

The backup method. Valid values:

  • logic: logical backup.

  • phy: fast backup.

phy

BackupLog

string

Indicates whether backup logging is enabled. Valid values:

  • 1: enabled.

  • 0: disabled.

1

NextBackupActuallyTime

string

This API does not return a value.

null

Examples

Success response

JSON format

{
  "Success": true,
  "RequestId": "8FAF3989-79CD-4A67-8FFD-97899B64SD5T",
  "BackupPolicyDO": {
    "BackupDbName": "null",
    "LogBackupRetentionPeriod": 10,
    "DataBackupRetentionPeriod": 10,
    "BackupType": "auto",
    "BackupLevel": "db",
    "LocalLogRetentionHours": 0,
    "HighSpaceUsageProtection": 0,
    "GmtModified": 0,
    "BackupRetentionPeriod": 8,
    "BackupPolicyMode": "DataBackupPolicy",
    "PreferredBackupPeriod": "2",
    "LocalLogRetentionSpace": 0,
    "BackupAppName": "null",
    "PreferredBackupTime": "22:00:00-23:00:00",
    "GmtCreate": 0,
    "BackupMode": "phy",
    "BackupLog": "1",
    "NextBackupActuallyTime": "null"
  }
}

Error codes

HTTP status code

Error code

Error message

Description

500 InternalError The request processing has failed due to some unknown error.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.