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Reviewed-by: Gladkov, Maksim <mgladkov@noreply.gitea.eco.tsi-dev.otc-service.com>
Co-authored-by: wangdengke2 <wangdengke2@huawei.com>
Co-committed-by: wangdengke2 <wangdengke2@huawei.com>

2025-09-04 07:22:35 +00:00

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Scaling Up Storage Space of an Instance

Function

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

Constraints

This API can be used for GeminiDB Cassandra instances.

URI

POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/extend-volume

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID.
instance_id	Yes	String	Instance ID.

Request Parameters

**Table 2** Request header parameter
Parameter	Mandatory	Type	Description
Content-Type	Yes	String	MIME type of the request body. application/json is recommended.
X-Auth-Token	Yes	String	User token.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
size	Yes	Integer	Requested storage space. It must be an integer greater than the current storage space. The maximum storage space depends on the API type and specifications.

Response Parameters

Status code: 202

**Table 4** Response body parameters
Parameter	Type	Description
job_id	String	Task ID.

Example Request

URI example

POST https://{Endpoint}/v3/375d8d8fad1f43039e23d3b6c0f60a19/instances/9136fd2a9fcd405ea4674276ce36dae8in06/extend-volume

Scaling up storage space of an instance to 550 GB
```
{
  "size" : 550
}
```

Example Response

Status code: 202

Accepted

{
  "job_id" : "04efe8e2-9255-44ae-a98b-d87cae411890"
}

Status Codes

See Status Codes.

Error Codes

See Error Codes.

Parent topic: Instances

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