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Start a SnapMirror transfer operation

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POST /snapmirror/relationships/{relationship.uuid}/transfers

Starts a SnapMirror transfer operation. This API initiates a restore operation if the SnapMirror relationship is of type "restore". Otherwise, it intiates a SnapMirror "initialize" operation or "update" operation based on the current SnapMirror state.

Default property values

  • storage_efficiency_enabled - true

  • snapmirror update

  • snapmirror initialize

  • snapmirror restore

Examples

The following examples show how to perform SnapMirror "initialize", "update", and "restore" operations.

Performing a SnapMirror initialize or update

 POST "/api/snapmirror/relationships/e4e7e130-0279-11e9-b566-0050568e9909/transfers" '{}'

Performing a SnapMirror restore transfer

 POST "/api/snapmirror/relationships/c8c62a90-0fef-11e9-b09e-0050568e7067/transfers" '{"source-snapshot": "src", "files": {"source_path": ["/a1.txt.0"], "destination_path": ["/a1-renamed.txt.0"]}}'

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Parameters

Name Type In Required Description

return_timeout

integer

query

False

The number of seconds to allow the call to execute before returning. When doing a POST, PATCH, or DELETE operation on a single record, the default is 0 seconds. This means that if an asynchronous operation is started, the server immediately returns HTTP code 202 (Accepted) along with a link to the job. If a non-zero value is specified for POST, PATCH, or DELETE operations, ONTAP waits that length of time to see if the job completes so it can return something other than 202.

relationship.uuid

string

path

True

Relationship UUID

Request Body

Name Type Description

_links

_links

bytes_transferred

integer

Bytes transferred

checkpoint_size

integer

Amount of data transferred in bytes as recorded in the restart checkpoint.

files

array[files]

This is supported for transfer of restore relationship only. This specifies the list of files or LUNs to be restored. Can contain up to eight files or LUNs.

relationship

relationship

snapshot

string

Name of Snapshot copy being transferred.

source_snapshot

string

Specifies the Snapshot copy on the source to be transferred to the destination.

state

string

Status of the transfer. Set PATCH state to "aborted" to abort the transfer. Set PATCH state to "hard_aborted" to abort the transfer and discard the restart checkpoint.

storage_efficiency_enabled

boolean

This is supported for transfer of restore relationship only. Set this field to 'false' to turn off storage efficiency for data transferred over the wire and written to the destination.

uuid

string
Example request 
{
  "_links": {
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "bytes_transferred": 0,
  "checkpoint_size": 0,
  "files": [
    {
      "destination_path": "/dirb/file2",
      "source_path": "/dira/file1"
    }
  ],
  "relationship": {
    "destination": {
      "path": "svm1:volume1",
      "svm": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "name": "svm1",
        "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
      }
    },
    "uuid": "d2d7ceea-ab52-11e8-855e-00505682a4c7"
  },
  "snapshot": "string",
  "source_snapshot": "string",
  "state": "string",
  "uuid": "4ea7a442-86d1-11e0-ae1c-123478563412"
}

Response

Status: 201, Created

Error

Status: Default

ONTAP Error Response codes

Error code Description

13303845

Restore operation failed

13303812

Initialize operation failed

13303844

Update operation failed

13303846

Empty source path file list

13303847

Invalid arguments

6620237

SnapMirror relationship database write failed

6620238

SnapMirror relationship database read failed
Name Type Description

error

error
Example error 
{
  "error": {
    "arguments": [
      {
        "code": "string",
        "message": "string"
      }
    ],
    "code": "4",
    "message": "entry doesn't exist",
    "target": "uuid"
  }
}

Definitions

See Definitions

href

Name Type Description

href

string

_links

Name Type Description

self

href

files

Specifies a file or LUN consisting of a source_path and an optional destination_path. If not specified, the destination_path is the same as the source_path.

Name Type Description

destination_path

string

source_path

string

svm

Name Type Description

_links

_links

name

string

The name of the SVM.

uuid

string

The unique identifier of the SVM.

snapmirror_endpoint

Endpoint of a SnapMirror relationship.

Name Type Description

path

string

ONTAP FlexVol/FlexGroup - svm1:volume1 ONTAP SVM - svm1:

  • example: svm1:volume1

  • readCreate: 1

svm

svm

relationship

Name Type Description

destination

snapmirror_endpoint

Endpoint of a SnapMirror relationship.

restore

boolean

Is the relationship for restore?

uuid

string

snapmirror_transfer

Snapmirror transfer information

Name Type Description

_links

_links

bytes_transferred

integer

Bytes transferred

checkpoint_size

integer

Amount of data transferred in bytes as recorded in the restart checkpoint.

files

array[files]

This is supported for transfer of restore relationship only. This specifies the list of files or LUNs to be restored. Can contain up to eight files or LUNs.

relationship

relationship

snapshot

string

Name of Snapshot copy being transferred.

source_snapshot

string

Specifies the Snapshot copy on the source to be transferred to the destination.

state

string

Status of the transfer. Set PATCH state to "aborted" to abort the transfer. Set PATCH state to "hard_aborted" to abort the transfer and discard the restart checkpoint.

storage_efficiency_enabled

boolean

This is supported for transfer of restore relationship only. Set this field to 'false' to turn off storage efficiency for data transferred over the wire and written to the destination.

uuid

string

error_arguments

Name Type Description

code

string

Argument code

message

string

Message argument

error

Name Type Description

arguments

array[error_arguments]

Message arguments

code

string

Error code

message

string

Error message

target

string

The target parameter that caused the error.