Migrates Elastic Compute Service (ECS) instances away from a failed dedicated host.
Operation description
If a dedicated host is in the UnderAssessment state, we recommend that you call this operation to migrate ECS instances away from the dedicated host to prevent permanent failures. You can call the DescribeDedicatedHosts operation to query the status of a dedicated host.
Debugging
Authorization information
The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:
- Operation: the value that you can use in the Action element to specify the operation on a resource.
- Access level: the access level of each operation. The levels are read, write, and list.
- Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resourcesis used in the Resource type column of the operation.
- Condition Key: the condition key that is defined by the cloud service.
- Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
| Operation | Access level | Resource type | Condition key | Associated operation |
|---|---|---|---|---|
| ecs:RedeployDedicatedHost | update | *DedicatedHost acs:ecs:{#regionId}:{#accountId}:ddh/{#ddhId} |
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| RegionId | string | Yes | The region ID of the dedicated host. You can call the DescribeRegions operation to query the most recent region list. | cn-hangzhou |
| DedicatedHostId | string | Yes | The ID of the dedicated host. | dh-bp165p6xk2tlw61e**** |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "FCED4B7A-53D5-4C04-ABE3-26D4F3890D57"
}Error codes
| HTTP status code | Error code | Error message | Description |
|---|---|---|---|
| 400 | InvalidDedicatedHostStatus.Malformed | The specified DedicatedHost is in inValid status to execute redeployment. | - |
| 400 | InvalidInstanceStatus.Unstopped | There is unstopped instances on DedicatedHost. | - |
| 403 | InvalidUser.Unauthorized | The user is not authorized. | The account you are currently using does not have permission. |
| 404 | InvalidDedicatedHostId.NotFound | The specified DedicatedHostId does not exist. | - |
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation |
|---|