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Create a fingerprint computation session

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POST /storage/snaplock/file-fingerprints

Introduced In: 9.7

Creates a fingerprint computation session on the file and returns a session-id. This session-id is a unique identifier that you can use to retrieve the progress of an ongoing fingerprint operation. When the operation is complete, you can use the session-id to retrieve the complete fingerprint output for the file .

Required properties

  • svm.uuid or svm.name - Name or UUID of the SVM.

  • volume.name or volume.uuid - Name or UUID of the volume.

  • path - Path of the file.

Default property values

If not specified in POST, the follow default property values are assigned:

  • algorithm - md5

  • volume file fingerprint start

Example

POST "/api/storage/snaplock/file-fingerprints" '{"svm":{"uuid":"23940494-3f3a-11e9-8675-0050568e8f89"},"volume": {"uuid":"26cdb58c-3f3a-11e9-8675-0050568e8f89"},"path":"/vol/a1.txt","algorithm":"md5"}'

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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.

  • Default value: 1

  • Max value: 120

  • Min value: 0

return_records

boolean

query

False

The default is false. If set to true, the records are returned.

  • Default value:

Request Body

Name Type Description

_links

_links

algorithm

string

The digest algorithm which is used for the fingerprint computation

data_fingerprint

string

The digest value of data of the file. The fingerprint is base64 encoded. This field is not included if the scope is metadata-only.

file_size

integer

The size of the file in bytes.

file_type

string

The type of the file.

id

integer

A unique identifier for the fingerprint operation

metadata_fingerprint

string

The digest value of metadata of the file. The metadata fingerprint is calculated for file size, file ctime, file mtime, file crtime, file retention time, file uid, file gid, and file type. The fingerprint is base64 encoded. This field is not included if the scope is data-only.

path

string

Specifies the path on which file fingerprint operation is running or has completed. Specifies the path relative to the output volume root, of the form "/path". The path can be path to a file or a directory.

scope

string

The scope of the file which is used for the fingerprint computation

state

string

Specifies the status of fingerprint operation.

svm

svm

volume

volume
Example request 
{
  "_links": {
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "algorithm": "sha256",
  "data_fingerprint": "MOFJVevxNSJm3C/4Bn5oEEYH51CrudOzZYK4r5Cfy1g=",
  "file_size": "1048576",
  "file_type": "worm",
  "id": "17039367",
  "metadata_fingerprint": "8iMjqJXiNcqgXT5XuRhLiEwIrJEihDmwS0hrexnjgmc=",
  "path": "/homedir/dir1",
  "scope": "data_only",
  "state": "completed",
  "svm": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "svm1",
    "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
  },
  "volume": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "volume1",
    "uuid": "028baa66-41bd-11e9-81d5-00a0986138f7"
  }
}

Response

Status: 202, Accepted
Name Type Description

job

job_link
Example response 
{
  "job": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "uuid": "string"
  }
}

Error

Status: Default

ONTAP Error Response codes

Error code Description

14090443

Invalid volume name

14090444

Invalid Vserver name

14090447

Invalid volume UUID

14090448

Invalid key values. Provide valid Vserver name and volume name or Vserver UUID and volume UUID
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

svm

Name Type Description

_links

_links

name

string

The name of the SVM.

uuid

string

The unique identifier of the SVM.

volume

Name Type Description

_links

_links

name

string

The name of the volume.

uuid

string

Unique identifier for the volume. This corresponds to the instance-uuid that is exposed in the CLI and ONTAPI. It does not change due to a volume move.

  • example: 028baa66-41bd-11e9-81d5-00a0986138f7

  • Introduced in: 9.6

snaplock_file_fingerprint

Name Type Description

_links

_links

algorithm

string

The digest algorithm which is used for the fingerprint computation

data_fingerprint

string

The digest value of data of the file. The fingerprint is base64 encoded. This field is not included if the scope is metadata-only.

file_size

integer

The size of the file in bytes.

file_type

string

The type of the file.

id

integer

A unique identifier for the fingerprint operation

metadata_fingerprint

string

The digest value of metadata of the file. The metadata fingerprint is calculated for file size, file ctime, file mtime, file crtime, file retention time, file uid, file gid, and file type. The fingerprint is base64 encoded. This field is not included if the scope is data-only.

path

string

Specifies the path on which file fingerprint operation is running or has completed. Specifies the path relative to the output volume root, of the form "/path". The path can be path to a file or a directory.

scope

string

The scope of the file which is used for the fingerprint computation

state

string

Specifies the status of fingerprint operation.

svm

svm

volume

volume
Name Type Description

_links

_links

uuid

string

The UUID of the asynchronous job that is triggered by a POST, PATCH, or DELETE operation.

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.