Help Center/ Relational Database Service/ API Reference (Ally Region)/ API v3 (Recommended)/ Backup and Restoration/ Setting an Automated Backup Policy
Updated on 2026-01-06 GMT+08:00
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Setting an Automated Backup Policy

Function

This API is used to set an automated backup policy.

URI

  • URI format

    PUT /v3/{project_id}/instances/{instance_id}/backups/policy

  • Parameter description
    Table 1 Parameter description

    Parameter

    Mandatory

    Description

    project_id

    Yes

    Project ID of a tenant in a region.

    For details about how to obtain the project ID, see Obtaining a Project ID.

    instance_id

    Yes

    Specifies the DB instance ID.

Request

Table 2 Parameter description

Parameter

Mandatory

Type

Description

backup_policy

Yes

Object

Backup policy objects, including the backup retention period (days) and backup start time.

For details, see Table 3.
Table 3 backup_policy field data structure description

Parameter

Mandatory

Type

Description

keep_days

Yes

Integer

Number of days to retain the generated full backups.

The value range is from 0 to 732. The value 0 indicates that the automated backup policy is disabled.

NOTICE:

Once the automated backup policy is disabled, automated backups are no longer created and all incremental backups are deleted immediately. Operations related to the incremental backups, including downloads, replications, restorations, and rebuilds, may fail.

start_time

No

String

Backup time window. Automated backups will be triggered during the backup time window. This parameter is mandatory except that the automated backup policy is disabled.

The value must be a valid value in the "hh:mm-HH:MM" format. The current time is in the UTC format.

  • The HH value must be 1 greater than the hh value.
  • The values of mm and MM must be the same and must be set to any of the following: 00, 15, 30, or 45.

Example value:

  • 08:15-09:15
  • 23:00-00:00

period

No

String

Backup cycle. Data will be automatically backed up on the selected days every week. This parameter is mandatory except that the automated backup policy is disabled.

Value range: The value is a number separated by commas (,), indicating the days of the week.

For example, the value 1,2,3,4 indicates that the backup period is Monday, Tuesday, Wednesday, and Thursday.

Example Request

  • Configure an automated backup policy for a DB instance, with backup cycle set to Monday and Tuesday, backup window to 19:00–20:00, and retention period to 7 days. 
    PUT https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/backups/policy

{
	"backup_policy": {
		"keep_days": 7,
		"start_time": "19:00-20:00",
		"period": "1,2"
	}
}
  • Disable an automated backup policy. 
    {
	"backup_policy": {
		"keep_days": 0
	}
}

Response

Status Code

Error Code

For details, see Error Codes.

Parent topic: Backup and Restoration