AddDiskReplicaPair -

Usage notes

For information about the regions in which the replication pair-consistent group feature is available, see Overview.
A replication pair and a replication pair-consistent group replicate in the same direction if they have the same primary region (production region), primary zone (production zone), secondary region (disaster recovery region), and secondary zone (disaster recovery zone). A replication pair can be added only to a replication pair-consistent group that replicates in the same direction as the replication pair.
Before you can add a replication pair to a replication pair-consistent group, make sure that the pair and the group are in the Created (created) or Stopped (stopped) state.
Up to 17 replication pairs can be added to a single replication pair-consistent group.
After replication pairs are added to a replication pair-consistent group, the recovery point objective (RPO) of the group takes effect on the pairs in place of their original RPOs.

Debugging

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	AddDiskReplicaPair	The operation that you want to perform. Set the value to AddDiskReplicaPair.
RegionId	String	Yes	cn-beijing	The region ID of the replication pair-consistent group.
ReplicaGroupId	String	Yes	pg-myreplica****	The ID of the replication pair-consistent group.
ReplicaPairId	String	Yes	pair-cn-dsa****	The ID of the replication pair. You can call the DescribeDiskReplicaPairs operation to query the IDs of existing replication pairs.
ClientToken	String	No	123e4567-e89b-12d3-a456-42665544****	The client token that is used to ensure the idempotence of the request. You can use the client to generate the token, but you must make sure that the token is unique among different requests. The token can contain only ASCII characters and cannot exceed 64 characters in length. For more information, see How to ensure idempotence.

Response parameters

Parameter	Type	Example	Description
RequestId	String	C123F94F-4E38-19AE-942A-A8D6F44F****	The ID of the request.

Examples

Sample requests

http(s)://ecs.aliyuncs.com/?Action=AddDiskReplicaPair
&RegionId=cn-beijing
&ReplicaGroupId=pg-myreplica****
&ReplicaPairId=pair-cn-dsa****
&ClientToken=123e4567-e89b-12d3-a456-42665544****
&<Common request parameters>

Sample success responses

XML format

HTTP/1.1 200 OK
Content-Type:application/xml

<AddDiskReplicaPairResponse>
    <RequestId>C123F94F-4E38-19AE-942A-A8D6F44F****</RequestId>
</AddDiskReplicaPairResponse>

JSON format

HTTP/1.1 200 OK
Content-Type:application/json

{
  "RequestId" : "C123F94F-4E38-19AE-942A-A8D6F44F****"
}

Error codes

HTTP status code	Error code	Error message	Description
403	OperationDenied	The operation is not allowed.	You cannot perform this operation.
403	OperationDenied.GroupStatusCannotAddPair	The pair cannot be added in group current status.	The replication pair cannot be added to the replication pair-consistent group while the group is in the current state.
403	OperationDenied.InvalidStatus	The operation is not allowed in current status.	You cannot perform this operation on the resource in the current state.
403	OperationDenied.PairGroupAZoneConflict	The operation is not allowed due to pair and group having different RegionId or ZoneId.	The operation is not supported because the replication pair-consistent group and the replication pair do not belong to the same region and zone.
403	OperationDenied.PairGroupStatusConflict	The operation is not allowed due to pair and group status are not consistent.	The operation is not supported because the state of the replication pair is not the same as that of the replication pair-consistent group.
403	OperationDenied.PairInAnotherGroup	The operation is not allowed because pair is already in another group.	The operation is not supported because the replication pair has been added to another replication pair-consistent group.
403	OperationDenied.PairInitializing	The operation is not allowed due to pair initializing, please try again later.	The operation is not supported because the replication pair is being initialized. Try again later.
403	OperationDenied.PairStatusCannotAddToGroup	The pair cannot be added in pair current status.	The replication pair cannot be added to the replication pair-consistent group while the pair is in the current state.
403	OperationDenied.QuotaExceed	The operation is not allowed due to quota exceed.	The quota has been exhausted.
403	OperationDenied.PairsExceedInGroup	The operation is not allowed due to too much pair in the group.	The operation is not supported because the maximum number of replication pairs in the replication pair-consistent group is reached.
403	OperationDenied.GroupTotalDiskCapacityLimit	The disk space in the replication pair-consistent group exceeds the upper limit.	The total capacity of disks in the replication pair-consistent group exceeds the maximum allowed value.
403	Forbidden	User is not authorized to operate.	You do not have the permissions to perform this operation on the resource. Check the permissions of your account or contact your Alibaba Cloud account administrator.
403	Forbidden.Action	User is not authorized to operate this action.	You have no access to this operation. Check the permissions of your account or contact your Alibaba Cloud account administrator.
404	NoSuchResource	The specified resource does not exist.	The specified resource is not found.
500	InternalError	The request processing has failed due to some unknown error, exception or failure.	An internal error occurred.
504	RequestTimeout	The request is timeout, please try again later.	The request timed out. Try again later.

For a list of error codes, see Service error codes.