Help Center/ GeminiDB/ API Reference/ APIs v3 (Recommended)/ Instances/ Querying the Autoscaling Policy of Storage Space
Updated on 2025-07-02 GMT+08:00
View PDF
Share

Querying the Autoscaling Policy of Storage Space

Function

This API is used to query the autoscaling policy of storage space.

Constraints

This API supports the following types of instances:

  • GeminiDB Cassandra

URI

GET https://{Endpoint}/v3/{project_id}/instances/{instance_id}/disk-auto-expansion

Table 1 Path parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Explanation:

Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID.

Constraints:

N/A

Values:

N/A

Default value:

N/A

instance_id

Yes

String

Explanation:

Instance ID

Constraints:

N/A

Values:

N/A

Default value:

N/A

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Explanation:

User token

Constraints:

N/A

Values:

N/A

Default value:

N/A

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

policy

object

Explanation:

Autoscaling policy for storage space.

Values:

No information is returned if the autoscaling policy is disabled.

For details, see Table 4.
Table 4 AutoEnlargePolicy

Parameter

Type

Description

threshold

Integer

Explanation:

Threshold for triggering autoscaling.

Values:

See Table 4.

step

Integer

Explanation:

Scale-up step size (%)

Values:

The storage is automatically scaled up by a percentage you specify. The calculated value will be rounded up to a multiple of 10. At least 100 GB is added each time by default.

NOTE:

If there is insufficient balance in your account, storage space may fail to be scaled up for yearly/monthly instances.

size

Integer

Explanation:

Storage limit in GB that autoscaling can increase storage space to.

Values:

See Table 4.

Example Request

  • URI example 
    GET https://gaussdb-nosql.ap-southeast-1.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/93e4b3eda14349b1b870f72829bc3b9bin06/disk-auto-expansion
  • Example request body

    None

Example Response

Status code: 200

Success

{ 
  "policy" : { 
    "threshold" : 90, 
    "step" : 10, 
    "size" : 600 
  } 
}

Status Codes

For details, see Status Codes.

Error Codes

For details, see Error Codes.

Parent topic: Instances