Querying Replication Pairs

Function

This API is used to query all replication pairs in a specified protection group. If you do not specify the protection group, the system lists all the replication pairs of the tenant.

Constraints and Limitations

None

URI

• URI format

  GET /v1/{project_id}/replications

• Parameter description

  Parameter	Mandatory	Type	Description
  project_id	Yes	String	Specifies the project ID.

Request

• Request parameters

  None

• Example request

  https://{Endpoint}/v1/{project_id}/replications?server_group_ids=%5b%2221d65fa4-430e-4761-b9ad-4e27364f874c%22%2c%22943c7d15-0371-4b89-b1a6-db1ef35c9263&status=available

  

  Use URL encoding for server_group_ids or protected_instance_ids.

Response

• Parameter description

  Parameter	Type	Description
  replications	Array of objects	Specifies the information about replication pairs. For details, see Table 1.
  count	Integer	Specifies the number of replication pairs.

  Table 1 replications field description

  Parameter	Type	Description
  id	String	Specifies the ID of a replication pair.
  name	String	Specifies the name of a replication pair.
  description	String	Specifies the description of a replication pair.
  replication_model	String	Specifies the replication mode of a replication pair. The default value is hypermetro, indicating synchronous replication.
  status	String	Specifies the status of a replication pair. For details, see Replication Pair Status.
  progress	Integer	Specifies the synchronization progress of a replication pair. Unit: %
  replication_status	String	Specifies the data synchronization status. active: Data has been synchronized. inactive: Data is not synchronized. copying: Data is being synchronized. active-stopped: Data synchronization is stopped.
  attachment	Array of objects	Specifies the device name. For details, see Table 2.
  server_group_id	String	Specifies the ID of a protection group.
  volume_ids	String	Specifies the ID of the disk used to create a replication pair.
  priority_station	String	Specifies the current production site AZ of the protection group containing the replication pair. source: indicates that the current production site AZ is the source_availability_zone value. target: indicates that the current production site AZ is the target_availability_zone value.
  fault_level	String	Specifies the fault level of a replication pair. 0: No fault occurs. 2: The disk of the current production site does not have read/write permissions. In this case, you are advised to perform a failover. 5: The replication link is disconnected. In this case, a failover is not allowed. Contact customer service.
  created_at	String	Specifies the time when a replication pair was created. The default format is as follows: ""yyyy-MM-ddTHH:mm:ss.SSSSSS", for example, 2019-04-01T12:00:00.000000.
  updated_at	String	Specifies the time when a replication pair was updated. The default format is as follows: ""yyyy-MM-ddTHH:mm:ss.SSSSSS", for example, 2019-04-01T12:00:00.000000.
  record_metadata	Object	Specifies the SDR data of a replication pair. For details, see Table 3.
  failure_detail	String	Specifies the error code returned only when status of a replication pair is error. For details, see the returned value in Error Codes.

  Table 2 attachment field description

  Parameter	Type	Description
  device	String	Specifies the device name.
  protected_instance	String	Specifies the ID of the protected instance to which the replication pair is attached.

  Table 3 record_metadata field description

  Parameter	Type	Description
  multiattach	Boolean	Specifies whether the disk in a replication pair is a shared disk.
  bootable	Boolean	Specifies whether the disk in a replication pair is a system disk.
  volume_size	Integer	Specifies the size of the disk in a replication pair. Unit: GB
  volume_type	String	Specifies the type of the disk in a replication pair. Currently, the value can be SSD, SAS, SATA, co-p1, uh-l1, GPSSD, or ESSD. SSD: specifies the ultra-high I/O disk type. SAS: specifies the high I/O disk type. SATA: specifies the common I/O disk type. co-p1: specifies the high I/O (performance-optimized I) disk type. uh-l1: specifies the ultra-high I/O (latency-optimized) disk type. GPSSD: specifies the general purpose SSD disk type. ESSD: specifies the extreme SSD disk type. Disks of the co-p1 and uh-l1 types are used exclusively for HPC ECSs and SAP HANA ECSs.

• Example response

  {
      "count": 1,
      "replications": [
          {
              "id": "b93bc1c4-67ee-45a1-bc8a-d022fdd28811",
              "name": "test_replication_name",
              "description": "description_test",
              "replication_model": "hypermetro",
              "status": "available",
              "progress": 0,
              "replication_status": "active",
              "attachment": [               
                  {     
                      "device": "/dev/vda",                   
                      "protected_instance": "8a7a6339-679b-452b-948c-144e0ef85d9e"               
                  }           
              ],
              "server_group_id": "c2aee29a-2959-4d01-9755-01cc76a4d17d",
              "volume_ids": "48dda0c0-c800-46f2-9728-a519ff783d35,388b324a-a9d1-44a4-a00d-42085f22a9bc",
              "priority_station": "source",
              "fault_level": "0",
              "created_at": "2018-05-04T03:43:24.108526",
              "updated_at": "2018-05-04T03:44:28.322873",
              "record_metadata": {
                  "multiattach": false,
                  "bootable": false,
                  "volume_size": 10,
                  "volume_type": "SATA"
              }
          }
      ]
  }

  Or

  { 
       "error": { 
           "message": "XXXX",  
           "code": "XXX" 
       } 
   }

  In this example, error represents a general error, including badrequest (shown below) and itemNotFound.

  { 
       "badrequest": { 
           "message": "XXXX",  
           "code": "XXX" 
       } 
   }

Returned Values

• Normal

  Returned Value	Description
  200	The server has accepted the request.

• Abnormal

  Returned Value	Description
  400 Bad Request	The server failed to process the request.
  401 Unauthorized	You must enter a username and the password to access the requested page.
  403 Forbidden	You are forbidden to access the requested page.
  404 Not Found	The server could not find the requested page.
  405 Method Not Allowed	You are not allowed to use the method specified in the request.
  406 Not Acceptable	The response generated by the server could not be accepted by the client.
  407 Proxy Authentication Required	You must use the proxy server for authentication so that the request can be processed.
  408 Request Timeout	The request timed out.
  409 Conflict	The request could not be processed due to a conflict.
  500 Internal Server Error	Failed to complete the request because of a service error.
  501 Not Implemented	Failed to complete the request because the server does not support the requested function.
  502 Bad Gateway	Failed to complete the request because the server receives an invalid response from an upstream server.
  503 Service Unavailable	Failed to complete the request because the system is unavailable.
  504 Gateway Timeout	A gateway timeout error occurred.