You can call this operation to query the maintenance attributes of an instance.


The operation is used to query the specified maintenance policy of an instance, which contains the following two major maintenance attributes:

  • Maintenance window: the time period that you specify for O&M.
  • Maintenance action: the policy that you specify in response to instance shutdown.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes DescribeInstanceMaintenanceAttributes

The operation that you want to perform. Set the value to DescribeInstanceMaintenanceAttributes.

RegionId String Yes cn-hangzhou

The region ID of the instance. You can call the DescribeRegions operation to query the most recent region list.

InstanceId.N RepeatList No i-bp67acfmxazb4p****

The ID of instance N. Valid values of N: 1 to 100.

PageNumber Long No 1

The number of the page to return.

Pages start from page 1.

Default value: 1.

PageSize Long No 10

The number of entries to return on each page. Valid values: 1 to 100.

Default value: 10.

Response parameters

Parameter Type Example Description
MaintenanceAttributes Array of MaintenanceAttribute

Details about the maintenance attributes.

ActionOnMaintenance Struct

The attribute of the maintenance action of the instance.

DefaultValue String AutoRecover

The default value of the maintenance action.

SupportedValues List "SupportedValue": ["Stop", "AutoRecover"]

Details about the supported maintenance actions.

Value String Stop

The current value of the maintenance action. Valid values:

  • Stop: The instance is shutdown.
  • AutoRecover: The instance is automatically recovered.
  • AutoRedeploy: Failover is performed, which may cause the damage of the data disk.
InstanceId String i-bp67acfmxazb4p****

The ID of the instance.

MaintenanceWindows Array of MaintenanceWindow

Details about the maintenance window.

EndTime String 18:00:00

The end time of the maintenance window.

StartTime String 02:00:00

The start time of the maintenance window.

PageNumber Integer 1

The page number of the returned page.

PageSize Integer 10

The number of entries returned per page.

RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.

TotalCount Integer 100

The total number of queried maintenance attributes.


Sample requests
&<Common request parameters>

Sample success responses

XML format


JSON format

    "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E",
    "PageNumber": 1,
    "PageSize": 10,
    "TotalCount": 100,
    "InstanceMaintenanceAttributes": {
        "InstanceMaintenanceAttribute": [{
            "InstanceId": "i-bp67acfmxazb4ph***",
            "MaintenanceWindows ": {
                "MaintenanceWindow": [{
                    "StartTime": "02:00:00",
                    "EndTime": "18:00:00"
            "ActionOnMaintenance": {
                "Value": "Stop",
                "DefaultValue": "AutoRecover",
                "SupportedValues": {
                    "SupportedValue": ["Stop", "AutoRecover"]

Error codes

HTTP status code Error code Error message Description
400 MissingParameter %s The error message returned because a required parameter is not specified.
403 InvalidParameter %s The error message returned because the specified parameter is invalid.
403 InstanceIdLimitExceeded %s The error message returned because the value set for N in the InstanceId.N parameter is more than 100.
403 OperationDenied.NotInWhiteList %s The error message returned because you are not authorized to perform this operation. Try again when you are in the whitelist.
404 InvalidInstanceId.NotFound The specified InstanceId does not exist. The error message returned because the specified instance does not exist. Check whether instance ID is correct.

For a list of error codes, visit the API Error Center.