Changing DB Instance Specifications

Function

This API is used to change DB instance specifications.

• Before calling an API, you need to understand the API in Authentication.

Services will be interrupted for 5 to 10 minutes when you change DB instance specifications. Exercise caution when performing this operation.

Constraints

• This API is unavailable to serverless instances.
• The new DB instance specifications must be different from the original DB instance specifications.
• The instance specifications can be modified only for DB instances in the Available status.
• The specifications of a DB instance can be changed only to the specifications of the same DB instance type. (For example, the specifications of a single DB instance cannot be changed to those of primary/standby DB instances.)
• When you change the instance specifications of an RDS for MySQL DB instance using local disks, the storage space after the change cannot be less than that of the original DB instance.

URI

• URI format

  POST /v3/{project_id}/instances/{instance_id}/action

• Parameter description

  Table 1 Parameter description

  Name	Mandatory	Description
  project_id	Yes	Specifies the 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

Example Request

• Changing the specifications of an RDS for MySQL DB instance to rds.mysql.m1.xlarge

  POST https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/action
  
  {
  	"resize_flavor": {
  		"spec_code": "rds.mysql.m1.xlarge",
                  "is_auto_pay": true
  	}
  }

• Changing the specifications of an RDS for PostgreSQL DB instance to rds.pg.c2.medium.ha

  {
  	"resize_flavor": {
  		"spec_code": "rds.pg.c2.medium.ha",
                  "is_auto_pay": true
  	}
  }

• Changing the specifications of an RDS for SQL Server DB instance to rds.mssql.2014.se.s3.large.2

  {
  	"resize_flavor": {
  		"spec_code": "rds.mssql.2014.se.s3.large.2",
                  "is_auto_pay": true
  	}
  }

Response

• Pay-per-use
  • Normal response

    Table 4 Parameter description

    Name	Type	Description
    job_id	String	Indicates the job ID.

  • Example normal response

    {
    	"job_id": "2b414788a6004883a02390e2eb0ea227"
    }

  • Abnormal response

    For details, see Abnormal Request Results.

Status Code

• Normal

  202

• Abnormal

  For details, see Status Codes.

Error Code

For details, see Error Codes.