Querying a Storage Autoscaling Policy

This API is used to query a storage autoscaling policy. Before calling this API:

GET /v3/{project_id}/instances/{instance_id}/storage/auto-expand-policy

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints N/A Range The value contains 32 characters. Only letters and digits are allowed. Default Value N/A
instance_id	Yes	String	Definition Instance ID, which uniquely identifies an instance. Constraints N/A Range The value contains 36 characters with a suffix of in07. Only letters and digits are allowed. Default Value N/A

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition User token. To obtain this value, call the IAM API for obtaining a user token. The value of X-Subject-Token in the response header is the token value. Constraints N/A Range N/A Default Value N/A
X-Language	No	String	Definition Request language type. Constraints N/A Range en-us zh-cn Default Value en-us

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
switch_option	Boolean	Definition Whether to enable an autoscaling policy.
limit_size	Integer	Definition Limit of storage (GB) that can be automatically scaled up to.
trigger_available_percent	Integer	Definition Percentage of available storage. The storage will be automatically scaled up if the available storage drops to or below the value of this parameter.
step_percent	Integer	Definition Scaling step when the storage is scaled by percentage.

Status code: 400

**Table 4** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Querying a storage autoscaling policy

GET https://{endpoint}/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/a23fb62bd61e4e9e9636fd2225f395bein07/storage/auto-expand-policy

Status code: 200

Success.

{
  "switch_option" : false,
  "limit_size" : 500,
  "trigger_available_percent" : 10,
  "step_percent" : 20
}

For details, see Status Codes.

For details, see Error Codes.

Parent topic: Instance Management

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