Querying an Autoscaling Policy

Function

This API is used to query the storage autoscaling policy of a DB instance.

Constraints

• This API is in OBT. To use this API, contact customer service.
• This API is only available to instances using cloud SSDs or extreme SSDs.

URI

• URI format

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

• Parameter description

  Table 1 Parameters

  Parameter	Mandatory	Type	Description
  project_id	Yes	String	Explanation: Project ID of a tenant in a region. For details about how to obtain the project ID, see Obtaining a Project ID. Constraints: N/A Value range: N/A Default value: N/A
  instance_id	Yes	String	Explanation: Instance ID. Constraints: N/A Value range: N/A Default value: N/A

Request

• Parameter description

  None

• URI example

  GET https://{endpoint}/v3/054e292c9880d4992f02c0196d3ea468/instances/3d39c18788b54a919bab633874c159dfin011/disk-auto-expansion

Response

• Normal response

  Table 2 Parameters

  Parameter	Type	Description
  switch_option	Boolean	Explanation: Whether to enable autoscaling. Value range: true: Enable storage autoscaling. false: Disable storage autoscaling.
  limit_size	Integer	Explanation: Upper limit for autoscaling, in GB. Value range: 0–4000, in GB
  trigger_threshold	Integer	Explanation: Threshold to trigger autoscaling. If the available storage drops to this threshold or 10 GB, autoscaling is triggered. Value range: Enumerated values: 10 15 20
  step_percent	Integer	Explanation: Autoscaling increment. It is the percentage of allocated storage that is automatically scaled up each time. Value range: 5%–50%

• Example normal response
  Query the autoscaling policy with autoscaling increment customization enabled.

  { 
    "switch_option" : true,
    "limit_size" : 4000,
    "trigger_threshold" : 10,
    "step_percent" : 30
  }
• Abnormal response

  For details, see Abnormal Request Results.

Status Code

• Normal

  200

• Abnormal

  For details, see Status Codes.