RedeployDedicatedHost-阿里云帮助中心

Operation description

When a DDH is in the alert state (UnderAssessment), which indicates a latent fault period, call this operation to perform failover migration for the DDH to prevent permanent failures. You can call DescribeDedicatedHosts to query the status of a dedicated host.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

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 DescribeRegions to query the most recent region list.	cn-hangzhou
DedicatedHostId	string	Yes	The ID of the dedicated host.	dh-bp165p6xk2tlw61e****
MigrationType	string	No	Specifies whether to stop ECS instance before migrating it to the destination dedicated host. Valid values: Reboot: stops ECS instance before migration. LiveMigrationFirst: migrates ECS instance without stopping it. You must specify the DedicatedHostId parameter. This value does not support changing ECS instance type during migration. If live migration fails, the system performs stop-and-migrate by default. Default value: Reboot. Valid values: LiveMigrationFirst : Migrates the instance without stopping it. Reboot : Stops the instance before migration.	Reboot

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	FCED4B7A-53D5-4C04-ABE3-26D4F3890D57

Examples

Success response

JSON format

{
  "RequestId": "FCED4B7A-53D5-4C04-ABE3-26D4F3890D57"
}

Error codes

HTTP status code	Error code	Error message
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.
404	InvalidDedicatedHostId.NotFound	The specified DedicatedHostId does not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.