Scaling Up Storage Space of a DB Instance

Function

This API is used to scale up storage space of a DB instance.

• Before calling an API, you need to understand the API in Authentication.
• Before calling this API, obtain the required region and endpoint.

Constraints

• The sizes of the primary and standby DB instances are the same. When you scale the primary DB instance, its standby DB instance is also scaled.
• The DB instances can be scaled when they are in the Available state.

URI

• URI format

  POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/action

• Example

  https://rds.cn-north-1.myhuaweicloud.com/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/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

• Parameter description

  Table 2 Parameter description

  Name	Mandatory	Type	Description
  enlarge_volume	Yes	Object	Specifies the target storage space after scaling up. For details, see Table 3.

  Table 3 enlarge_volume field data structure description

  Name	Mandatory	Type	Description
  size	Yes	Integer	The minimum start value of each scaling is 10 GB. A DB instance can be scaled up only by a multiple of 10 GB. Value range: 10 GB to 4000 GB

Response

• Pay-per-use
  • Normal response

    Table 4 Parameter description

    Name	Type	Description
    job_id	String	Indicates the task ID.

  • Example normal response

    {
    	"job_id": "2b414788a6004883a02390e2eb0ea227"
    }

  • Abnormal response

    For details, see Abnormal Request Results.

Status Code

For details, see Status Codes.

Error Code

For details, see Error Codes.