You can call the CloneDBInstance operation to restore the data of an original ApsaraDB for RDS instance to a new instance. The new instance is called a cloned instance.

Before you call this operation, make sure that the following requirements are met:

  • The original instance must be in the Running state.
  • The original instance cannot have ongoing migration tasks.
  • The log backup function must be enabled on the original instance to support point-in-time recovery (PITR).
  • If you want to clone the original instance by using a backup set, the instance must have at least one backup set.
    Note ApsaraDB for RDS allows you to create a cloned instance by using the credentials of your RAM user. Make sure that your RAM user is granted the permissions that are required to clone an instance. For more information, see Use RAM to manage ApsaraDB for RDS permissions.

Note the following information:

  • The new instance has the same IP address whitelist, security group, SQL Explorer (SQL Audit), alert threshold, backup, and parameter settings as the original instance.
  • The data and account information of the new instance is the same as the information that is indicated by the data or log backup file of the original instance.

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 a sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes CloneDBInstance

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

DBInstanceId String Yes rm-uf6wjk5xxxxxxxxxx

The ID of the new instance.
DBInstanceStorageType String Yes cloud_essd

The storage type of the new instance. Valid values:

  • local_ssd/ephemeral_ssd: local SSD
  • cloud_ssd: standard SSD
  • cloud_essd: enhanced SSD
PayType String Yes Postpaid

The billing method of the new instance. Valid values:

  • Postpaid: pay-as-you-go
  • Prepaid: subscription
RegionId String No cn-hangzhou

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

ZoneId String No cn-hangzhou-b

The ID of the zone to which the new instance belongs. You can call the DescribeRegions operation to query the most recent zone list.

Note The default value is the ID of the zone to which the original instance belongs.
DBInstanceClass String No mysql.n1.micro.1

The instance type of the new instance. For more information, see Primary instance types.

Note The default value is the instance type of the original instance.
DBInstanceStorage Integer No 1000

The storage capacity of the new instance. Unit: GB. The storage capacity increases in increments of 5 GB. For more information, see Primary instance types.

Note The default value is the storage capacity of the original instance.
DbNames String No testDB

The names of the databases that you want to create on the new instance.
InstanceNetworkType String No VPC

The network type of the new instance. Valid values:

  • VPC
  • Classic
Note The default value is the network type of the original instance.
BackupId String No 9026262

The ID of the backup set that you want to use.

You can call the DescribeBackups operation to query the most recent backup set list.

Note You must specify at least one of the BackupId and RestoreTime parameters.
RestoreTime String No 2011-06-11T16:00:00Z

The point in time to which you want to restore the data of the original instance. The point in time must fall within the specified log backup retention period. The time follows the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time must be in UTC.

Note You must specify at least one of the BackupId and RestoreTime parameters.
VPCId String No vpc-uf6f7l4fg90xxxxxxxxxx

The ID of the VPC to which the new instance belongs.

Note Make sure that the VPC resides in the specified region.
VSwitchId String No vsw-uf6adz52c2pxxxxxxxxxx

The ID of the VSwitch associated with the specified VPC.

Note Make sure that the VSwitch belongs to the specified VPC and region.
PrivateIpAddress String No 172.16.201.69

The private IP address of the new instance. The private IP address must fall within the Classless Inter-Domain Routing (CIDR) block that is supported by the specified VSwitch. The system automatically assigns an IP address based on the VPCId and VSwitchId parameters.

UsedTime Integer No 1

The subscription period of the new instance if the new instance uses subscription billing. Valid values:

  • If you set the Period parameter to Year, the value of the UsedTime parameter ranges from 1 to 3.
  • If you set the Period parameter to Month, the value of the UsedTime parameter ranges from 1 to 9.
Note This parameter must be specified if the PayType parameter is set to Prepaid.
Period String No Year

The renewal period of the new instance if the new instance uses subscription billing. Valid values:

  • Year
  • Month
Note This parameter must be specified if the PayType parameter is set to Prepaid.
Category String No HighAvailability

The RDS edition of the new instance. Valid values:

  • Basic: Basic Edition
  • HighAvailability: High-availability Edition
  • AlwaysOn: Cluster Edition
  • Finance: Enterprise Edition
RestoreTable String No 1

Specifies whether to restore specific databases and tables. The value 1 specifies to restore specific databases and tables. If you do not want to restore specific databases or tables, you can choose not to specify this parameter.

TableMeta String No [{"type":"db","name":"testdb1","newname":"testdb1_new","tables":[{"type":"table","name":"testdb1table1","newname":"testdb1table1_new"}]}]

The information about the databases and tables that you want to restore. Format:

[{"type":"db","name":"The original name of Database 1","newname":"The new name of Database 1","tables":[{"type":"table","name":"The original name of Table 1 in Database 1","newname":"The new name of Table 1 in Database 1"},{"type":"table","name":"The original name of Table 2 in Database 1","newname":"The new name of Table 2 in Database 1"}]},{"type":"db","name":"The original name of Database 2","newname":"The new name of Database 2","tables":[{"type":"table","name":"The original name of Table 1 in Database 2","newname":"The new name of Table 1 in Database 2"},{"type":"table","name":"The original name of Table 2 in Database 2","newname":"The new name of Table 2 in Database 2"}]}]
DedicatedHostGroupId String No dhg-7a9xxxxxxxx

The ID of the dedicated cluster to which the new instance belongs if you create the new instance in a dedicated cluster.

BackupType String No FullBackup

The type of backup used by the new instance. Valid values:

  • FullBackup: full backup
  • IncrementalBackup: incremental backup

Response parameters

Parameter Type Example Description
DBInstanceId String rm-uf6wjk5xxxxxxx

The ID of the new instance.
OrderId String 100789370xxxxx

The ID of the order.
RequestId String 1E43AAE0-BEE8-43DA-860D-EAF2AA0724DC

The ID of the request.

Examples

Sample requests

http(s)://rds.aliyuncs.com/? Action=CloneDBInstance
&PayType=Postpaid
&DBInstanceId=rm-uf6wjk5xxxxxxxxxx
&DBInstanceStorageType=cloud_essd
&<Common request parameters>

Sample success responses

XML format 

<CloneDBInstanceResponse>
      <OrderId>100789370xxxxx</OrderId>
      <DBInstanceId>rm-uf6wjk5xxxxxxx</DBInstanceId>
      <RequestId>1E43AAE0-BEE8-43DA-860D-EAF2AA0724DC</RequestId>
</CloneDBInstanceResponse>

JSON format 

{
    "OrderId": "100789370xxxxx",
    "DBInstanceId": "rm-uf6wjk5xxxxxxx",
    "RequestId": "1E43AAE0-BEE8-43DA-860D-EAF2AA0724DC"
}

Error codes

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