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Write to an existing file with the supplied data

PDFs

PATCH /storage/volumes/{volume.uuid}/files/{path}

Writes to an existing file with the supplied data or modifies the QoS policy of a file.

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Parameters

Name Type In Required Description

volume.uuid

string

path

True

Volume UUID

path

string

path

True

Relative path of a file in the volume. The path field requires using "%2E" to represent "." and "%2F" to represent "/" for the path provided.

byte_offset

integer

query

False

How many bytes into the file to begin writing. Use -1 to append (default).

overwrite

bool

query

False

If false, and the file exists, the write will fail. Default is false.

stream_name

string

query

False

Name of stream associated with the file to write data to.

data

string

formData

False

Data to write to the file.

Request Body

Name Type Description

name

string

Name of the file.

qos_policy

qos_policy

The QoS policy for the file. Both traditional and adaptive QoS policies are supported. If both qos_policy.uuid and qos_policy.name properties are specified in the same request, they must refer to the same QoS policy. To remove the file from a QoS policy, set the property qos_policy.name in a PATCH request to an empty string "" or "none".

Note Files which are in use as a LUN cannot be assigned to a QoS policy, instead use PATCH on /storage/luns to assign a QoS policy for such files.

Note that a QoS policy can be set on a file, or a file's volume, but not on both.

size

integer

The size of the file, in bytes.

target

string

The relative or absolute path contained in a symlink, in the form /.

unix_permissions

integer

UNIX permissions to be viewed as an octal number. It consists of 4 digits derived by adding up bits 4 (read), 2 (write), and 1 (execute). The first digit selects the set user ID(4), set group ID (2), and sticky (1) attributes. The second digit selects permissions for the owner of the file; the third selects permissions for other users in the same group; the fourth selects permissions for other users not in the group.
Example request 
{
  "is_empty": "",
  "is_junction": "",
  "is_snapshot": "",
  "is_vm_aligned": "",
  "name": "test_file",
  "qos_policy": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "qos1",
    "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
  },
  "size": 200,
  "target": "some_directory/some_other_directory/some_file",
  "unix_permissions": 493
}

Response

Status: 200, Ok

Error

Status: Default, Error
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

metadata

href

self

href

_links

Name Type Description

self

href

qos_policy

The QoS policy for the file. Both traditional and adaptive QoS policies are supported. If both qos_policy.uuid and qos_policy.name properties are specified in the same request, they must refer to the same QoS policy. To remove the file from a QoS policy, set the property qos_policy.name in a PATCH request to an empty string "" or "none".

Note Files which are in use as a LUN cannot be assigned to a QoS policy, instead use PATCH on /storage/luns to assign a QoS policy for such files.

Note that a QoS policy can be set on a file, or a file's volume, but not on both.

Name Type Description

_links

_links

name

string

The name of the QoS policy. To remove the file from a QoS policy, set this property to an empty string "" or set it to "none" in a PATCH request.

uuid

string

The unique identifier of the QoS policy. Valid in PATCH.

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

file_info

Information about a single file.

Name Type Description

name

string

Name of the file.

qos_policy

qos_policy

The QoS policy for the file. Both traditional and adaptive QoS policies are supported. If both qos_policy.uuid and qos_policy.name properties are specified in the same request, they must refer to the same QoS policy. To remove the file from a QoS policy, set the property qos_policy.name in a PATCH request to an empty string "" or "none".

Note Files which are in use as a LUN cannot be assigned to a QoS policy, instead use PATCH on /storage/luns to assign a QoS policy for such files.

Note that a QoS policy can be set on a file, or a file's volume, but not on both.

size

integer

The size of the file, in bytes.

target

string

The relative or absolute path contained in a symlink, in the form /.

unix_permissions

integer

UNIX permissions to be viewed as an octal number. It consists of 4 digits derived by adding up bits 4 (read), 2 (write), and 1 (execute). The first digit selects the set user ID(4), set group ID (2), and sticky (1) attributes. The second digit selects permissions for the owner of the file; the third selects permissions for other users in the same group; the fourth selects permissions for other users not in the group.

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.