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ONTAP REST API reference

Create a LUN

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POST /storage/luns

Introduced In: 9.6

Creates a LUN.

Required properties

  • svm.uuid or svm.name - Existing SVM in which to create the LUN.

  • name, location.volume.name or location.volume.uuid - Existing volume in which to create the LUN.

  • name or location.logical_unit - Base name of the LUN.

  • os_type - Operating system from which the LUN will be accessed. Required when creating a non-clone LUN and disallowed when creating a clone of an existing LUN. A clone's os_type is taken from the source LUN.

  • space.size - Size of the LUN. Required when creating a non-clone LUN and disallowed when creating a clone of an existing LUN. A clone's size is taken from the source LUN.

  • qos_policy.name or qos_policy.uuid - Existing traditional or adaptive QoS policy to be applied to the LUN. All LUNs should be managed by a QoS policy at the volume or LUN level.

Default property values

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

  • auto_delete - false

  • lun create

  • lun convert-from-namespace

  • lun copy start

  • volume file clone autodelete

  • volume file clone create

POST is asynchronous when creating a new LUN. It is synchronous when converting a namespace to a LUN via the convert property.

Learn more

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

attributes

array[attributes]

An array of name/value pairs optionally stored with the LUN. Attributes are available to callers to persist small amounts of application-specific metadata. They are in no way interpreted by ONTAP.

Attribute names and values must be at least one byte and no more than 4091 bytes in length. The sum of the name and value lengths must be no more than 4092 bytes.

Valid in POST except when creating a LUN clone. A cloned can already have attributes from its source. You can add, modify, and delete the attributes of a LUN clone in separate requests after creation of the LUN.

Attributes can be added/modified/removed for an existing LUN using the /api/storage/luns/{lun.uuid}/attributes endpoint. For further information, see DOC /storage/luns/{lun.uuid}/attributes .

There is an added computational cost to retrieving property values for attributes. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

  • Introduced in: 9.10

  • readCreate: 1

auto_delete

boolean

This property marks the LUN for auto deletion when the volume containing the LUN runs out of space. This is most commonly set on LUN clones.

When set to true, the LUN becomes eligible for automatic deletion when the volume runs out of space. Auto deletion only occurs when the volume containing the LUN is also configured for auto deletion and free space in the volume decreases below a particular threshold.

This property is optional in POST and PATCH. The default value for a new LUN is false.

There is an added computational cost to retrieving this property's value. It is not populated for a GET request unless it is explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

class

string

The class of LUN.

Optional in POST.

clone

clone

This sub-object is used in POST to create a new LUN as a clone of an existing LUN, or PATCH to overwrite an existing LUN as a clone of another. Setting a property in this sub-object indicates that a LUN clone is desired. Consider the following other properties when cloning a LUN: auto_delete, qos_policy, space.guarantee.requested and space.scsi_thin_provisioning_support_enabled.

When used in a PATCH, the patched LUN's data is over-written as a clone of the source and the following properties are preserved from the patched LUN unless otherwise specified as part of the PATCH: class, auto_delete, lun_maps, serial_number, status.state, and uuid.

Persistent reservations for the patched LUN are also preserved.

comment

string

A configurable comment available for use by the administrator. Valid in POST and PATCH.

consistency_group

consistency_group

The LUN's consistency group. This property is populated for LUNs that are members of a consistency group. If the LUN is a member of a child consistency group, the parent consistency group is reported. A LUN's consistency group is the consistency group of its containing volume.

convert

convert

This sub-object is used in POST to convert a valid in-place NVMe namespace to a LUN. Setting a property in this sub-object indicates that a conversion from the specified NVMe namespace to LUN is desired.

copy

copy

This sub-object applies to LUN copy operations. A LUN can be copied with a POST request that supplies copy.source properties.

Copying a LUN is an asynchronous activity begun by a POST request that specifies the source of the copy in the copy.source properties. The data for the LUN is then asynchronously copied from the source to the destination. The time required to complete the copy depends on the size of the LUN and the load on the cluster. The copy sub-object is populated while a LUN copy is in progress and for two (2) minutes following completion of a copy.

While LUNs are being copied, the status of the LUN copy operations can be obtained using a GET of the source or destination LUN that requests the copy properties. If the LUN is the source LUN for one or more copy operations, the copy.destinations array is populated in GET. If the containing LUN is the destination LUN for a copy operation, the copy.source sub-object is populated in GET. The LUN copy operation can be further modified using a PATCH on the properties on the copy.source sub-object of the copy destination LUN.

There is an added computational cost to retrieving property values for copy. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

create_time

string

The time the LUN was created.

enabled

boolean

The enabled state of the LUN. LUNs can be disabled to prevent access to the LUN. Certain error conditions also cause the LUN to become disabled. If the LUN is disabled, check the status.state property to determine if the LUN is administratively disabled (offline) or has become disabled as a result of an error. A LUN in an error condition can be brought online by setting the enabled property to true or brought administratively offline by setting the enabled property to false. Upon creation, a LUN is enabled by default. Valid in PATCH.

location

location

The location of the LUN within the ONTAP cluster. LUNs support rename and move between volumes. Valid in POST and PATCH.

  • Introduced in: 9.6

lun_maps

array[lun_maps]

The LUN maps with which the LUN is associated.

There is an added computational cost to retrieving property values for lun_maps. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more. These properties are supported for GET only.

metric

metric

Performance numbers, such as IOPS latency and throughput.

movement

movement

This sub-object applies to LUN movement between volumes. A LUN can be moved to a new volume with a PATCH request that changes either the volume portion of property name, location.volume.uuid, or location.volume.name. If the volume is changed using more than one of these properties, the supplied properties used must refer to the same volume.

Moving a LUN between volumes is an asynchronous activity begun by a PATCH request. The data for the LUN is then asynchronously copied from the source volume to the destination volume. The time required to complete the move depends on the size of the LUN and the load on the cluster. The movement sub-object is populated while a LUN movement is in progress and for two (2) minutes following completion of a movement.

While the LUN is being moved, the status of the LUN movement operation can be obtained using a GET for the LUN that requests the movement properties. The LUN movement operation can be further modified using a PATCH on the properties on the movement sub-object.

There is an added computational cost to retrieving property values for movement. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

name

string

The name of the LUN. Valid in POST and PATCH.

A LUN is located within a volume. Optionally, it can be located within a qtree in a volume.

LUN names are paths of the form "/vol/<volume>[/<qtree>]/<lun>" where the qtree name is optional.

A PATCH that modifies the qtree and/or base name portion of the LUN path is considered a rename operation.

A PATCH that modifies the volume portion of the LUN path begins an asynchronous LUN movement operation.

os_type

string

The operating system type of the LUN.

Required in POST when creating a LUN that is not a clone of another. Disallowed in POST when creating a LUN clone.

provisioning_options

provisioning_options

Options that are applied to the operation.

qos_policy

qos_policy

The QoS policy for the LUN. Both traditional and adaptive QoS policies are supported. If both property qos_policy.uuid and qos_policy.name are specified in the same request, they must refer to the same QoS policy. To remove the QoS policy from a LUN, leaving it with no QoS policy, set the property qos_policy.name to an empty string ("") in a PATCH request. Valid in POST and PATCH.

serial_number

string

The LUN serial number. The serial number is generated by ONTAP when the LUN is created.

  • maxLength: 12

  • minLength: 12

  • readOnly: 1

  • Introduced in: 9.6

  • x-nullable: true

space

space

The storage space related properties of the LUN.

statistics

statistics

These are raw performance numbers, such as IOPS latency and throughput. These numbers are aggregated across all nodes in the cluster and increase with the uptime of the cluster.

status

status

Status information about the LUN.

svm

svm

The SVM in which the LUN is located.

uuid

string

The unique identifier of the LUN. The UUID is generated by ONTAP when the LUN is created.

  • example: 1cd8a442-86d1-11e0-ae1c-123478563412

  • readOnly: 1

  • Introduced in: 9.6

  • x-nullable: true

vvol

vvol

A VMware virtual volume (vVol) binding is an association between a LUN of class protocol_endpoint and a LUN of class vvol. Class protocol_endpoint LUNs are mapped to igroups and granted access using the same configuration as class regular LUNs. When a class vvol LUN is bound to a mapped class protocol_endpoint LUN, VMware can access the class vvol LUN through the class protocol_endpoint LUN mapping.

See link:post-protocols-san-vvol-bindings(#-san-vvol-binding-create)tolearnmoreaboutcreatingvvolbindingsanddelete-protocols-san-vvol-bindings.htmlPOST /protocols/san/vvol-bindings to learn more about creating vVol bindings and [DELETE /protocols/san/vvol-bindings] to learn more about deleting vVol bindings.

There is an added computational cost to retrieving property values for vvol. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.
Example request 
{
  "_links": {
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "attributes": [
    {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "name1",
      "value": "value1"
    }
  ],
  "class": "string",
  "clone": {
    "source": {
      "name": "/vol/volume1/lun1",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    }
  },
  "comment": "string",
  "consistency_group": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "cg1",
    "uuid": "4abc2317-4332-9d37-93a0-20bd29c22df0"
  },
  "convert": {
    "namespace": {
      "name": "/vol/volume1/namespace1",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    }
  },
  "copy": {
    "destinations": [
      {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "max_throughput": 0,
        "name": "/vol/vol1/lun1",
        "peer": {
          "_links": {
            "self": {
              "href": "/api/resourcelink"
            }
          },
          "name": "peer1",
          "uuid": "4204cf77-4c82-9bdb-5644-b5a841c097a9"
        },
        "progress": {
          "elapsed": 0,
          "failure": {
            "arguments": [
              {
                "code": "string",
                "message": "string"
              }
            ],
            "code": "4",
            "message": "entry doesn't exist"
          },
          "percent_complete": 0,
          "state": "string"
        },
        "uuid": "1bc327d5-4654-5284-a116-f182282240b4"
      }
    ],
    "source": {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "/vol/vol2/lun1",
      "peer": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "name": "peer1",
        "uuid": "4204cf77-4c82-9bdb-5644-b5a841c097a9"
      },
      "progress": {
        "elapsed": 0,
        "failure": {
          "arguments": [
            {
              "code": "string",
              "message": "string"
            }
          ],
          "code": "4",
          "message": "entry doesn't exist"
        },
        "percent_complete": 0,
        "state": "string"
      },
      "uuid": "03c05019-40d9-3945-c767-dca4c3be5e90"
    }
  },
  "create_time": "2018-06-04 15:00:00 -0400",
  "location": {
    "logical_unit": "lun1",
    "node": {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "node1",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    },
    "qtree": {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "id": 1,
      "name": "qt1"
    },
    "volume": {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "volume1",
      "uuid": "028baa66-41bd-11e9-81d5-00a0986138f7"
    }
  },
  "lun_maps": [
    {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "igroup": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "comment": "string",
        "igroups": [
          {
            "_links": {
              "self": {
                "href": "/api/resourcelink"
              }
            },
            "name": "igroup1",
            "uuid": "4ea7a442-86d1-11e0-ae1c-123478563412"
          }
        ],
        "initiators": [
          {
            "comment": "my comment",
            "name": "iqn.1998-01.com.corp.iscsi:name1"
          }
        ],
        "name": "igroup1",
        "os_type": "string",
        "protocol": "string",
        "uuid": "4ea7a442-86d1-11e0-ae1c-123478563412"
      }
    }
  ],
  "metric": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "duration": "PT15S",
    "iops": {
      "read": 200,
      "total": 1000,
      "write": 100
    },
    "latency": {
      "read": 200,
      "total": 1000,
      "write": 100
    },
    "status": "ok",
    "throughput": {
      "read": 200,
      "total": 1000,
      "write": 100
    },
    "timestamp": "2017-01-25 06:20:13 -0500"
  },
  "movement": {
    "paths": {
      "destination": "/vol/vol1/lun1",
      "source": "/vol/vol2/lun2"
    },
    "progress": {
      "elapsed": 0,
      "failure": {
        "arguments": [
          {
            "code": "string",
            "message": "string"
          }
        ],
        "code": "4",
        "message": "entry doesn't exist"
      },
      "percent_complete": 0,
      "state": "string"
    }
  },
  "name": "/vol/volume1/qtree1/lun1",
  "os_type": "string",
  "provisioning_options": {
    "qos_policy": {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "performance",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    },
    "snapshot_policy": {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "default",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    },
    "storage_service": {
      "name": "string"
    },
    "tiering": {
      "control": "string",
      "object_stores": [
        {
          "name": "string"
        }
      ],
      "policy": "string"
    }
  },
  "qos_policy": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "qos1",
    "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
  },
  "serial_number": "string",
  "space": {
    "efficiency_ratio": 2.5,
    "physical_used": 1073741824,
    "physical_used_by_snapshots": 1073741824,
    "size": 1073741824,
    "used": 0
  },
  "statistics": {
    "iops_raw": {
      "read": 200,
      "total": 1000,
      "write": 100
    },
    "latency_raw": {
      "read": 200,
      "total": 1000,
      "write": 100
    },
    "status": "ok",
    "throughput_raw": {
      "read": 200,
      "total": 1000,
      "write": 100
    },
    "timestamp": "2017-01-25 06:20:13 -0500"
  },
  "status": {
    "container_state": "string",
    "state": "online"
  },
  "svm": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "svm1",
    "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
  },
  "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412",
  "vvol": {
    "bindings": [
      {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "id": 1,
        "partner": {
          "_links": {
            "self": {
              "href": "/api/resourcelink"
            }
          },
          "name": "/vol/vol1/lun1",
          "uuid": "4ea7a442-86d1-11e0-ae1c-123478563412"
        },
        "secondary_id": "0000D20000010000h"
      }
    ]
  }
}

Response

Status: 202, Accepted
Name Type Description

job

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

Headers

Name Description Type

Location

Useful for tracking the resource location

string

Response

Status: 201, Created

Error

Status: Default

ONTAP Error Response Codes

Error Code Description

917927

The specified volume was not found.

918236

The specified location.volume.uuid and location.volume.name do not refer to the same volume.

1260121

Cloning a LUN to a volume different than the source volume is not supported.

1260136

The specified destination for a clone operation already exists as a LUN, namespace, or file.

2621462

The specified SVM does not exist.

2621706

The specified svm.uuid and svm.name do not refer to the same SVM.

2621707

No SVM was specified. Either svm.name or svm.uuid must be supplied.

5242927

The specified qtree was not found.

5242950

The specified location.qtree.id and location.qtree.name do not refer to the same qtree.

5374121

A LUN name can only contain characters A-Z, a-z, 0-9, "-", ".", "_", "{" and "}".

5374123

A negative size was provided for the LUN.

5374124

The specified size is too small for the LUN.

5374125

The specified size is too large for the LUN.

5374127

The specified LUN name is invalid.

5374129

LUNs cannot be created on a load sharing mirror volume.

5374130

An invalid size value was provided.

5374237

LUNs cannot be created on an SVM root volume.

5374238

LUNs cannot be created in snapshots.

5374241

A size value with invalid units was provided.

5374242

A LUN or NVMe namespace already exists at the specified path.

5374352

An invalid name was provided for the LUN.

5374614

The specified storage availability zone does not exist.

5374707

Creating a LUN in the specific volume is not allowed because the volume is reserved for an application.

5374858

The volume specified by name is not the same as that specified by location.volume.

5374859

No volume was specified for the LUN.

5374860

The qtree specified by name is not the same as that specified by location.qtree.

5374861

The LUN base name specified by name is not the same as that specified by location.logical_unit.

5374862

No LUN path base name was provided for the LUN.

5374863

An error occurred after successfully creating the LUN. Some properties were not set.

5374874

The specified clone.source.uuid and clone.source.name do not refer to the same LUN.

5374875

The specified clone.source was not found.

5374876

The specified clone.source was not found.

5374883

The property cannot be specified when creating a LUN clone. The target property of the error object identifies the property.

5374884

A property that is required when creating a new LUN that is not a LUN clone or LUN copy was not supplied. The target property of the error object identifies the property.

5374886

An error occurred after successfully creating the LUN preventing the retrieval of its properties.

5374899

The clone.source.uuid property is not supported when specifying a source LUN from a snapshot.

5374928

An incomplete attribute name/value pair was supplied.

5374929

The combined sizes of an attribute name and value are too large.

5374932

A name for an attribute was duplicated.

5374942

The property cannot be specified at the same time when creating a LUN as a clone. The target property of the error object identifies the other property given with clone.

5374943

The property cannot be specified at the same time when creating a LUN as a copy. The target property of the error object identifies the other property given with copy.

5374944

The property cannot be specified when converting an NVMe namespace into a LUN. The target property of the error object identifies the property.

5375054

The source LUN is required when requesting an SVM copy operation.

5375059

An unsuitable QoS policy was specified.

5375061

The specified location.storage_availability_zone.uuid and location.storage_availability_zone.name do not refer to the same storage availability zone.

5376461

The specified LUN name is invalid.

5376462

The specified LUN name is too long.

5376463

The snapshot portion of the specified LUN name is too long.

5376469

The property cannot be set during the LUN create operation on this platform.

5376515

The specified storage availability zone is not configured for provisioning on the specified SVM.

5440509

No suitable storage can be found for the specified requirements.

5440688

A LUN cannot be created with the same name as an existing LUN.

5702832

A LUN or namespace with the same name is already being created. LUN and namespace names must be unique within an SVM.

7018877

Maximum combined total (50) of file and LUN copy and move operations reached. When one or more of the operations has completed, try the command again.

13565952

The LUN clone request failed.

26345672

An SVM peer relationship was not found with the provided 'copy.source.peer.uuid'.

26345673

An SVM peer relationship between the SVM provided in 'copy.source.peer.name' and the SVM provided in either 'svm.name' or 'svm.uuid' was not found.

26345674

The SVM peer relationship provided in 'copy.source.peer.uuid' does not match a peer relationship between the local SVM provided in either 'svm.uuid' or 'svm.name' and the peer SVM provided in 'copy.source.peer.name'.

26345675

The destination SVM provided via 'svm.name' or 'svm.uuid' does not match the local SVM for the provided SVM peer relationship UUID in 'copy.source.peer.uuid'.

72089755

NVMe namespace with a block size of 4096 bytes cannot be converted to a LUN.

72089756

Namespace is currently mapped to subsystem.

72089757

NVMe namespace in a snapshot cannot be converted to a LUN.

Also see the table of common errors in the Response body overview section of this documentation.

Name Type Description

error

returned_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

attributes

A name/value pair optionally stored with the LUN. Attributes are available to callers to persist small amounts of application-specific metadata. They are in no way interpreted by ONTAP.

Attribute names and values must be at least one byte and no more than 4091 bytes in length. The sum of the name and value lengths must be no more than 4092 bytes.

Optional in POST.

Name Type Description

_links

_links

name

string

The attribute name.

value

string

The attribute value.

source

The source LUN for a LUN clone operation. This can be specified using property clone.source.uuid or clone.source.name. If both properties are supplied, they must refer to the same LUN.

Valid in POST to create a new LUN as a clone of the source.

Valid in PATCH to overwrite an existing LUN's data as a clone of another.

Name Type Description

name

string

The name of the clone source LUN. A LUN is located within a volume. Optionally, it can be located within a qtree in a volume.

LUN names are paths of the form "/vol/<volume>[/<qtree>]/<namespace>" where the qtree name is optional.

Valid in POST and PATCH.

uuid

string

The unique identifier of the clone source LUN. Valid in POST and PATCH.

clone

This sub-object is used in POST to create a new LUN as a clone of an existing LUN, or PATCH to overwrite an existing LUN as a clone of another. Setting a property in this sub-object indicates that a LUN clone is desired. Consider the following other properties when cloning a LUN: auto_delete, qos_policy, space.guarantee.requested and space.scsi_thin_provisioning_support_enabled.

When used in a PATCH, the patched LUN's data is over-written as a clone of the source and the following properties are preserved from the patched LUN unless otherwise specified as part of the PATCH: class, auto_delete, lun_maps, serial_number, status.state, and uuid.

Persistent reservations for the patched LUN are also preserved.

Name Type Description

source

source

The source LUN for a LUN clone operation. This can be specified using property clone.source.uuid or clone.source.name. If both properties are supplied, they must refer to the same LUN.

Valid in POST to create a new LUN as a clone of the source.

Valid in PATCH to overwrite an existing LUN's data as a clone of another.

consistency_group

The LUN's consistency group. This property is populated for LUNs that are members of a consistency group. If the LUN is a member of a child consistency group, the parent consistency group is reported. A LUN's consistency group is the consistency group of its containing volume.

Name Type Description

_links

_links

name

string

The name of the consistency group.

uuid

string

The unique identifier of the consistency group.

namespace

The source namespace for convert operation. This can be specified using property convert.namespace.uuid or convert.namespace.name. If both properties are supplied, they must refer to the same NVMe namespace.

Valid in POST. A convert request from NVMe namespace to LUN cannot be combined with setting any other LUN properties. All other properties of the converted LUN come from the source NVMe namespace.

Name Type Description

name

string

The name of the source NVMe namespace. Valid in POST. An NVMe namespace is located within a volume. Optionally, it can be located within a qtree in a volume.

NVMe namespace names are paths of the form "/vol/<volume>[/<qtree>]/<NVMe namespace>" where the qtree name is optional.

uuid

string

The unique identifier of the source NVMe namespace. Valid in POST.

convert

This sub-object is used in POST to convert a valid in-place NVMe namespace to a LUN. Setting a property in this sub-object indicates that a conversion from the specified NVMe namespace to LUN is desired.

Name Type Description

namespace

namespace

The source namespace for convert operation. This can be specified using property convert.namespace.uuid or convert.namespace.name. If both properties are supplied, they must refer to the same NVMe namespace.

Valid in POST. A convert request from NVMe namespace to LUN cannot be combined with setting any other LUN properties. All other properties of the converted LUN come from the source NVMe namespace.

peer

The SVM peer relationship object for an inter-SVM LUN copy operation. The peer SVM in the relationship is the source SVM and the local SVM is the destination SVM.

This is only populated by GET when the LUN copy is inter-SVM.

Name Type Description

_links

_links

name

string

The local name of the peer SVM. This name is unique among all local and peer SVMs.

uuid

string

The unique identifier of the SVM peer relationship. This is the UUID of the relationship, not the UUID of the peer SVM itself.

error_arguments

Name Type Description

code

string

Argument code

message

string

Message argument

error

Error information provided if the asynchronous LUN copy operation fails.

Name Type Description

arguments

array[error_arguments]

Message arguments

code

string

Error code

message

string

Error message

progress

Properties related to the progress of an active or recently completed LUN copy.

Name Type Description

elapsed

integer

The amount of time that has elapsed since the start of the LUN copy, in seconds.

failure

error

Error information provided if the asynchronous LUN copy operation fails.

percent_complete

integer

The percentage completed of the LUN copy.

state

string

The state of the LUN copy.

volume_snapshot_blocked

boolean

This property reports if volume snapshots are blocked by the LUN copy. This property can be polled to identify when volume snapshots can be resumed after beginning a LUN copy.

destinations

A LUN copy operation in which the containing LUN is the source of the copy.

Name Type Description

_links

_links

max_throughput

integer

The maximum data throughput, in bytes per second, that should be utilized in support of the LUN copy. See property copy.source.max_throughput for further details.

name

string

The fully qualified path of the LUN copy destination composed of a "/vol" prefix, the volume name, the optional qtree name, and base name of the LUN.

peer

peer

The SVM peer relationship object for an inter-SVM LUN copy operation. The peer SVM in the relationship is the source SVM and the local SVM is the destination SVM.

This is only populated by GET when the LUN copy is inter-SVM.

progress

progress

Properties related to the progress of an active or recently completed LUN copy.

uuid

string

The unique identifier of the LUN copy destination.

peer

The SVM peer relationship object for an inter-SVM LUN copy operation. The peer SVM in the relationship is the source SVM and the local SVM is the destination SVM.

Set this in POST to specify the source SVM for an inter-SVM LUN copy. Only populated by GET when the LUN copy is inter-SVM.

Name Type Description

_links

_links

name

string

The local name of the peer SVM. This name is unique among all local and peer SVMs.

uuid

string

The unique identifier of the SVM peer relationship. This is the UUID of the relationship, not the UUID of the peer SVM itself.

progress

Properties related to the progress of an active or recently completed LUN copy.

Name Type Description

elapsed

integer

The amount of time that has elapsed since the start of the LUN copy, in seconds.

failure

error

Error information provided if the asynchronous LUN copy operation fails.

percent_complete

integer

The percentage completed of the LUN copy.

state

string

The state of the LUN copy.

Valid in PATCH when an LUN copy is active. Set to paused to pause a LUN copy. Set to replicating to resume a paused LUN copy.

volume_snapshot_blocked

boolean

This property reports if volume snapshots are blocked by the LUN copy. This property can be polled to identify when volume snapshots can be resumed after beginning a LUN copy.

source

The source LUN of a LUN copy operation in which the containing LUN is the destination of the copy.

Valid in POST except when creating a LUN clone. A LUN copy request cannot be combined with setting any other LUN properties except the destination location. All other properties of the destination LUN come from the source LUN.

Name Type Description

_links

_links

max_throughput

integer

The maximum data throughput, in bytes per second, that should be utilized in support of the LUN copy. This property can be used to throttle a transfer and limit its impact on the performance of the source and destination nodes. The specified value will be rounded up to the nearest megabyte.

If this property is not specified in a POST that begins a LUN copy, throttling is not applied to the data transfer.

For more information, see Size properties in the docs section of the ONTAP REST API documentation.

Valid only in a POST that begins a LUN copy or a PATCH when a LUN copy is already in process.

  • format: int64

  • Introduced in: 9.10

  • x-nullable: true

name

string

The fully qualified path of the LUN copy source composed of a "/vol" prefix, the volume name, the optional qtree name, and base name of the LUN.

Set this property in POST to specify the source for a LUN copy operation.

peer

peer

The SVM peer relationship object for an inter-SVM LUN copy operation. The peer SVM in the relationship is the source SVM and the local SVM is the destination SVM.

Set this in POST to specify the source SVM for an inter-SVM LUN copy. Only populated by GET when the LUN copy is inter-SVM.

progress

progress

Properties related to the progress of an active or recently completed LUN copy.

uuid

string

The unique identifier of the LUN copy source.

Set this property in POST to specify the source for a LUN copy operation.

copy

This sub-object applies to LUN copy operations. A LUN can be copied with a POST request that supplies copy.source properties.

Copying a LUN is an asynchronous activity begun by a POST request that specifies the source of the copy in the copy.source properties. The data for the LUN is then asynchronously copied from the source to the destination. The time required to complete the copy depends on the size of the LUN and the load on the cluster. The copy sub-object is populated while a LUN copy is in progress and for two (2) minutes following completion of a copy.

While LUNs are being copied, the status of the LUN copy operations can be obtained using a GET of the source or destination LUN that requests the copy properties. If the LUN is the source LUN for one or more copy operations, the copy.destinations array is populated in GET. If the containing LUN is the destination LUN for a copy operation, the copy.source sub-object is populated in GET. The LUN copy operation can be further modified using a PATCH on the properties on the copy.source sub-object of the copy destination LUN.

There is an added computational cost to retrieving property values for copy. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

Name Type Description

destinations

array[destinations]

An array of destination LUNs of LUN copy operations in which the containing LUN is the source of the copy.

source

source

The source LUN of a LUN copy operation in which the containing LUN is the destination of the copy.

Valid in POST except when creating a LUN clone. A LUN copy request cannot be combined with setting any other LUN properties except the destination location. All other properties of the destination LUN come from the source LUN.

node

The cluster node that hosts the LUN.

Name Type Description

_links

_links

name

string

uuid

string

qtree

The qtree in which the LUN is optionally located. Valid in POST and PATCH.

If properties name and location.qtree.name and/or location.qtree.id are specified in the same request, they must refer to the same qtree.

A PATCH that modifies the qtree of the LUN is considered a rename operation.

Name Type Description

_links

_links

id

integer

The identifier for the qtree, unique within the qtree's volume.

name

string

The name of the qtree.

volume

The volume in which the LUN is located. Valid in POST and PATCH.

If properties name and location.volume.name and/or location.volume.uuid are specified in the same request, they must refer to the same volume.

A PATCH that modifies the volume of the LUN begins an asynchronous LUN movement operation.

Name Type Description

_links

_links

name

string

The name of the volume. This field cannot be specified in a PATCH method.

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

  • x-nullable: true

location

The location of the LUN within the ONTAP cluster. LUNs support rename and move between volumes. Valid in POST and PATCH.

Name Type Description

logical_unit

string

The base name component of the LUN. Valid in POST and PATCH.

If properties name and location.logical_unit are specified in the same request, they must refer to the base name.

A PATCH that modifies the base name of the LUN is considered a rename operation.

node

node

The cluster node that hosts the LUN.

qtree

qtree

The qtree in which the LUN is optionally located. Valid in POST and PATCH.

If properties name and location.qtree.name and/or location.qtree.id are specified in the same request, they must refer to the same qtree.

A PATCH that modifies the qtree of the LUN is considered a rename operation.

volume

volume

The volume in which the LUN is located. Valid in POST and PATCH.

If properties name and location.volume.name and/or location.volume.uuid are specified in the same request, they must refer to the same volume.

A PATCH that modifies the volume of the LUN begins an asynchronous LUN movement operation.
Name Type Description

self

href

igroups

Name Type Description

_links

self_link

name

string

The name of the initiator group.

uuid

string

The unique identifier of the initiator group.

initiators

The initiators that are members of the initiator group.

Name Type Description

comment

string

A comment available for use by the administrator.

name

string

Name of initiator that is a member of the initiator group.

igroup

The initiator group to which the LUN is mapped.

Name Type Description

_links

_links

comment

string

A comment available for use by the administrator. Valid in POST and PATCH.

igroups

array[igroups]

The existing initiator groups that are members of the group. Optional in POST.

This property is mutually exclusive with the initiators property during POST.

This array contains only the direct children of the initiator group. If the member initiator groups have further nested initiator groups, those are reported in the igroups property of the child initiator group.

Zero or more nested initiator groups can be supplied when the initiator group is created. The initiator group will act as if it contains the aggregation of all initiators in any nested initiator groups.

After creation, nested initiator groups can be added or removed from the initiator group using the /protocols/san/igroups/{igroup.uuid}/igroups endpoint. See link:post-protocols-san-igroups-igroups(#-san-igroup-nested-create)anddelete-protocols-san-igroups-igroups-.htmlPOST /protocols/san/igroups/{igroup.uuid}/igroups and [DELETE /protocols/san/igroups/{igroup.uuid}/igroups/{uuid}] for more details.

initiators

array[initiators]

The initiators that are members of the group.

name

string

The name of the initiator group.

os_type

string

The host operating system of the initiator group. All initiators in the group should be hosts of the same operating system.

protocol

string

The protocols supported by the initiator group. This restricts the type of initiators that can be added to the initiator group. Optional in POST; if not supplied, this defaults to mixed.

The protocol of an initiator group cannot be changed after creation of the group.

uuid

string

The unique identifier of the initiator group.

lun_maps

A LUN map is an association between a LUN and an initiator group.

When a LUN is mapped to an initiator group, the initiator group's initiators are granted access to the LUN. The relationship between a LUN and an initiator group is many LUNs to many initiator groups.

Name Type Description

_links

_links

igroup

igroup

The initiator group to which the LUN is mapped.

logical_unit_number

integer

The logical unit number assigned to the LUN when mapped to the specified initiator group. The number is used to identify the LUN to initiators in the initiator group when communicating through the Fibre Channel Protocol or iSCSI. Optional in POST; if no value is provided, ONTAP assigns the lowest available value. This property is not supported when the provisioning_options.count property is 2 or more.

  • Introduced in: 9.6

  • readCreate: 1

  • x-nullable: true

iops

The rate of I/O operations observed at the storage object.

Name Type Description

other

integer

Performance metric for other I/O operations. Other I/O operations can be metadata operations, such as directory lookups and so on.

read

integer

Performance metric for read I/O operations.

total

integer

Performance metric aggregated over all types of I/O operations.

write

integer

Performance metric for write I/O operations.

latency

The round trip latency in microseconds observed at the storage object.

Name Type Description

other

integer

Performance metric for other I/O operations. Other I/O operations can be metadata operations, such as directory lookups and so on.

read

integer

Performance metric for read I/O operations.

total

integer

Performance metric aggregated over all types of I/O operations.

write

integer

Performance metric for write I/O operations.

throughput

The rate of throughput bytes per second observed at the storage object.

Name Type Description

other

integer

Performance metric for other I/O operations. Other I/O operations can be metadata operations, such as directory lookups and so on.

read

integer

Performance metric for read I/O operations.

total

integer

Performance metric aggregated over all types of I/O operations.

write

integer

Performance metric for write I/O operations.

metric

Performance numbers, such as IOPS latency and throughput.

Name Type Description

_links

_links

duration

string

The duration over which this sample is calculated. The time durations are represented in the ISO-8601 standard format. Samples can be calculated over the following durations:

iops

iops

The rate of I/O operations observed at the storage object.

latency

latency

The round trip latency in microseconds observed at the storage object.

status

string

Errors associated with the sample. For example, if the aggregation of data over multiple nodes fails, then any partial errors might return "ok" on success or "error" on an internal uncategorized failure. Whenever a sample collection is missed but done at a later time, it is back filled to the previous 15 second timestamp and tagged with "backfilled_data". "Inconsistent_ delta_time" is encountered when the time between two collections is not the same for all nodes. Therefore, the aggregated value might be over or under inflated. "Negative_delta" is returned when an expected monotonically increasing value has decreased in value. "Inconsistent_old_data" is returned when one or more nodes do not have the latest data.

throughput

throughput

The rate of throughput bytes per second observed at the storage object.

timestamp

string

The timestamp of the performance data.

paths

The fully qualified LUN path names involved in the LUN movement.

Name Type Description

destination

string

The fully qualified path of the LUN movement destination composed of a "/vol" prefix, the volume name, the optional qtree name, and base name of the LUN.

source

string

The fully qualified path of the LUN movement source composed of a "/vol" prefix, the volume name, the optional qtree name, and base name of the LUN.

error

Error information provided if the asynchronous LUN movement operation fails.

Name Type Description

arguments

array[error_arguments]

Message arguments

code

string

Error code

message

string

Error message

progress

Properties related to the progress of an active or recently completed LUN movement.

Name Type Description

elapsed

integer

The amount of time that has elapsed since the start of the LUN movement, in seconds.

failure

error

Error information provided if the asynchronous LUN movement operation fails.

percent_complete

integer

The percentage completed of the LUN movement.

state

string

The state of the LUN movement.

Valid in PATCH when an LUN movement is active. Set to paused to pause a LUN movement. Set to replicating to resume a paused LUN movement.

volume_snapshot_blocked

boolean

This property reports if volume snapshots are blocked by the LUN movement. This property can be polled to identify when volume snapshots can be resumed after beginning a LUN movement.

movement

This sub-object applies to LUN movement between volumes. A LUN can be moved to a new volume with a PATCH request that changes either the volume portion of property name, location.volume.uuid, or location.volume.name. If the volume is changed using more than one of these properties, the supplied properties used must refer to the same volume.

Moving a LUN between volumes is an asynchronous activity begun by a PATCH request. The data for the LUN is then asynchronously copied from the source volume to the destination volume. The time required to complete the move depends on the size of the LUN and the load on the cluster. The movement sub-object is populated while a LUN movement is in progress and for two (2) minutes following completion of a movement.

While the LUN is being moved, the status of the LUN movement operation can be obtained using a GET for the LUN that requests the movement properties. The LUN movement operation can be further modified using a PATCH on the properties on the movement sub-object.

There is an added computational cost to retrieving property values for movement. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

Name Type Description

max_throughput

integer

The maximum data throughput, in bytes per second, that should be utilized in support of the LUN movement. This property can be used to throttle a transfer and limit its impact on the performance of the source and destination nodes. The specified value will be rounded up to the nearest megabyte.

If this property is not specified in a POST that begins a LUN movement, throttling is not applied to the data transfer.

For more information, see Size properties in the docs section of the ONTAP REST API documentation.

This property is valid only in a POST that begins a LUN movement or a PATCH when a LUN movement is already in process.

  • format: int64

  • Introduced in: 9.6

  • x-nullable: true

paths

paths

The fully qualified LUN path names involved in the LUN movement.

progress

progress

Properties related to the progress of an active or recently completed LUN movement.

qos_policy

The QoS policy for the volume provisioned to host the LUN. This property is only supported when the request provisions a new volume. This property is mutually exclusive with the LUN granular qos_policy. If no qos_policy is provided at LUN or volume granularity, a volume granular policy is set based on the storage_service.name, which defaults to the most performant service available.

Name Type Description

_links

self_link

name

string

The QoS policy group name. This is mutually exclusive with UUID and other QoS attributes during POST and PATCH.

uuid

string

The QoS policy group UUID. This is mutually exclusive with name and other QoS attributes during POST and PATCH.

snapshot_policy_reference

This is a reference to the snapshot policy.

Name Type Description

_links

_links

name

string

uuid

string

storage_service

Determines the placement of the LUN based on the value specified. This property is only supported for regular and vvol LUNs. Valid in POST.

Name Type Description

name

string

Storage service name. If not specified, the default value is the most performant for the platform.

object_stores

Name Type Description

name

string

The name of the object store to use. Used for placement.

tiering

The tiering placement and policy definitions for the volume provisioned to host the LUN. This property is only supported when the request provisions a new volume.

Name Type Description

control

string

Storage tiering placement rules for the object.

object_stores

array[object_stores]

Object stores to use. Used for placement.

policy

string

Policy that determines whether the user data blocks of a volume in a FabricPool will be tiered to the cloud store when they become cold.

FabricPool combines flash (performance tier) with a cloud store into a single aggregate. Temperature of a volume block increases if it is accessed frequently and decreases when it is not. Valid in POST or PATCH.

all ‐ Allows tiering of both snapshots and active file system user data to the cloud store as soon as possible by ignoring the temperature on the volume blocks.

auto ‐ Allows tiering of both snapshot and active file system user data to the cloud store

none ‐ Volume blocks are not be tiered to the cloud store.

snapshot_only ‐ Allows tiering of only the volume snapshots not associated with the active file system.

The default tiering policy is "snapshot-only" for a FlexVol volume and "none" for a FlexGroup volume. The default minimum cooling period for the "snapshot-only" tiering policy is 2 days and for the "auto" tiering policy it is 31 days.

provisioning_options

Options that are applied to the operation.

Name Type Description

auto

boolean

If the volume specified in the request does not exist, automatically provision one of appropriate size. If the volume does exist, resize it to accommodate the new LUN.

This property is only supported on Unified ONTAP.

The following behavior is different from a traditional POST request:

  • The operation is asynchronous.

  • The qos_policy property is applied to the provisioned volume instead of the LUN. A default QoS policy is applied to the volume if one is not provided.

  • The provisioning_options.count property is supported, provisioning count LUNs on the volume using the specified properties.

  • The lun_maps property is supported. If the specified initiator group does not exist, it is created. The LUN is mapped to this initiator group. If an initiator group is provisioned in this way, it is deleted after it is no longer mapped to any LUNs.

  • The clone, copy, and convert properties are not supported.

  • When performing records based operations, specifying this property in the query applies to the entire operation. Specifying it for an individual record within the request applies to only that record.

  • Many other provisioning_options properties are supported to control the placement of the LUN and the properties of the volume containing the LUN.

  • Default value: 1

  • x-ntap-createOnly: true

  • Introduced in: 9.16

  • x-nullable: true

count

integer

The number of LUNs to provision with these properties. Only POST requests based on space.size are supported. When provided, the name is considered a prefix, and a suffix of the form _<N> is generated where N is the next available numeric index, starting with 1.

qos_policy

qos_policy

The QoS policy for the volume provisioned to host the LUN. This property is only supported when the request provisions a new volume. This property is mutually exclusive with the LUN granular qos_policy. If no qos_policy is provided at LUN or volume granularity, a volume granular policy is set based on the storage_service.name, which defaults to the most performant service available.

snapshot_policy

snapshot_policy_reference

This is a reference to the snapshot policy.

storage_service

storage_service

Determines the placement of the LUN based on the value specified. This property is only supported for regular and vvol LUNs. Valid in POST.

tiering

tiering

The tiering placement and policy definitions for the volume provisioned to host the LUN. This property is only supported when the request provisions a new volume.

use_mirrored_aggregates

boolean

Specifies whether mirrored aggregates are selected when provisioning the volume to host the LUN. Only mirrored aggregates are used if this parameter is set to true and only unmirrored aggregates are used if this parameter is set to false. The default value is true for a MetroCluster configuration and is false for a non-MetroCluster configuration.

qos_policy

The QoS policy for the LUN. Both traditional and adaptive QoS policies are supported. If both property qos_policy.uuid and qos_policy.name are specified in the same request, they must refer to the same QoS policy. To remove the QoS policy from a LUN, leaving it with no QoS policy, set the property qos_policy.name to an empty string ("") in a PATCH request. Valid in POST and PATCH.

Name Type Description

_links

_links

name

string

The name of the QoS policy. To remove the QoS policy from a LUN, leaving it with no QoS policy, set this property to an empty string ("") in a PATCH request. Valid in POST and PATCH.

uuid

string

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

guarantee

Properties that request and report the space guarantee for the LUN.

Name Type Description

requested

boolean

The requested space reservation policy for the LUN. If true, a space reservation is requested for the LUN; if false, the LUN is thin provisioned. Guaranteeing a space reservation request for a LUN requires that the volume in which the LUN resides is also space reserved and that the fractional reserve for the volume is 100%. Valid in POST and PATCH. This property is caller settable as described above.

reserved

boolean

Reports if the LUN is space guaranteed.

If true, a space guarantee is requested and the containing volume and aggregate support the request. If false, a space guarantee is not requested or a space guarantee is requested and either the containing volume or aggregate do not support the request.

space

The storage space related properties of the LUN.

Name Type Description

efficiency_ratio

number

The storage efficiency ratio of the LUN without snapshots. (Logical Used / Used) This property is not available on the LUN object in the REST API and is not reported for GET requests. See the containing volume object for this information.

guarantee

guarantee

Properties that request and report the space guarantee for the LUN.

physical_used

integer

The number of bytes consumed on the disk by the LUN, excluding snapshots. This property is not available on the LUN object in the REST API and is not reported for GET requests. See the containing volume object for this information.

physical_used_by_snapshots

integer

The number of bytes consumed on the disk by the LUN's snapshots. This property is not available on the LUN object in the REST API and is not reported for GET requests. See the containing volume object for this information.

scsi_thin_provisioning_support_enabled

boolean

To leverage the benefits of SCSI thin provisioning, it must be supported by your host. SCSI thin provisioning uses the Logical Block Provisioning feature as defined in the SCSI SBC-3 standard. Only hosts that support this standard can use SCSI thin provisioning in ONTAP.

When you disable SCSI thin provisioning support in ONTAP, you turn off the following SCSI thin provisioning features:

  • Unmapping and reporting space usage for space reclamation

  • Reporting resource exhaustion errors

The value of this property is not propagated to the destination when a LUN is cloned as a new LUN or copied; it is reset to false. The value of this property is maintained from the destination LUN when a LUN is overwritten as a clone.

Valid in POST and PATCH.

  • Default value: 1

  • Introduced in: 9.10

  • x-nullable: true

size

integer

The total provisioned size of the LUN. The LUN size can be increased but not decreased using the REST interface.

The maximum and minimum sizes listed here are the absolute maximum and absolute minimum sizes, in bytes. The actual minimum and maximum sizes vary depending on the ONTAP version, ONTAP platform and the available space in the containing volume and aggregate.

For more information, see Size properties in the docs section of the ONTAP REST API documentation.

  • example: 1073741824

  • format: int64

  • Max value: 140737488355328

  • Min value: 4096

  • Introduced in: 9.6

  • x-nullable: true

used

integer

The amount of space consumed by the main data stream of the LUN.

This value is the total space consumed in the volume by the LUN, including filesystem overhead, but excluding prefix and suffix streams. Due to internal filesystem overhead and the many ways SAN filesystems and applications utilize blocks within a LUN, this value does not necessarily reflect actual consumption/availability from the perspective of the filesystem or application. Without specific knowledge of how the LUN blocks are utilized outside of ONTAP, this property should not be used as an indicator for an out-of-space condition.

For more information, see Size properties in the docs section of the ONTAP REST API documentation.

  • format: int64

  • readOnly: 1

  • Introduced in: 9.6

  • x-nullable: true

iops_raw

The number of I/O operations observed at the storage object. This can be used along with delta time to calculate the rate of I/O operations per unit of time.

Name Type Description

other

integer

Performance metric for other I/O operations. Other I/O operations can be metadata operations, such as directory lookups and so on.

read

integer

Performance metric for read I/O operations.

total

integer

Performance metric aggregated over all types of I/O operations.

write

integer

Performance metric for write I/O operations.

latency_raw

The raw latency in microseconds observed at the storage object. This can be divided by the raw IOPS value to calculate the average latency per I/O operation.

Name Type Description

other

integer

Performance metric for other I/O operations. Other I/O operations can be metadata operations, such as directory lookups and so on.

read

integer

Performance metric for read I/O operations.

total

integer

Performance metric aggregated over all types of I/O operations.

write

integer

Performance metric for write I/O operations.

throughput_raw

Throughput bytes observed at the storage object. This can be used along with delta time to calculate the rate of throughput bytes per unit of time.

Name Type Description

other

integer

Performance metric for other I/O operations. Other I/O operations can be metadata operations, such as directory lookups and so on.

read

integer

Performance metric for read I/O operations.

total

integer

Performance metric aggregated over all types of I/O operations.

write

integer

Performance metric for write I/O operations.

statistics

These are raw performance numbers, such as IOPS latency and throughput. These numbers are aggregated across all nodes in the cluster and increase with the uptime of the cluster.

Name Type Description

iops_raw

iops_raw

The number of I/O operations observed at the storage object. This can be used along with delta time to calculate the rate of I/O operations per unit of time.

latency_raw

latency_raw

The raw latency in microseconds observed at the storage object. This can be divided by the raw IOPS value to calculate the average latency per I/O operation.

status

string

Errors associated with the sample. For example, if the aggregation of data over multiple nodes fails, then any partial errors might return "ok" on success or "error" on an internal uncategorized failure. Whenever a sample collection is missed but done at a later time, it is back filled to the previous 15 second timestamp and tagged with "backfilled_data". "Inconsistent_ delta_time" is encountered when the time between two collections is not the same for all nodes. Therefore, the aggregated value might be over or under inflated. "Negative_delta" is returned when an expected monotonically increasing value has decreased in value. "Inconsistent_old_data" is returned when one or more nodes do not have the latest data.

throughput_raw

throughput_raw

Throughput bytes observed at the storage object. This can be used along with delta time to calculate the rate of throughput bytes per unit of time.

timestamp

string

The timestamp of the performance data.

status

Status information about the LUN.

Name Type Description

container_state

string

The state of the volume and aggregate that contain the LUN. LUNs are only available when their containers are available.

mapped

boolean

Reports if the LUN is mapped to one or more initiator groups.

There is an added computational cost to retrieving this property's value. It is not populated for a GET request unless it is explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

read_only

boolean

Reports if the LUN allows only read access.

state

string

The state of the LUN. Normal states for a LUN are online and offline. Other states indicate errors.

svm

The SVM in which the LUN is located.

Name Type Description

_links

_links

name

string

The name of the SVM. This field cannot be specified in a PATCH method.

uuid

string

The unique identifier of the SVM. This field cannot be specified in a PATCH method.

partner

The LUN partner that this LUN is bound to. If this LUN is a vvol class LUN, the partner is a protocol_endpoint class LUN.

Name Type Description

_links

_links

name

string

The name of the partner LUN.

uuid

string

The unique identifier of the partner LUN.

bindings

A vVol binding with which the LUN is associated.

Name Type Description

_links

_links

id

integer

The ONTAP internal identifier assigned to the vVol binding. The bind identifier is unique amongst all class vvol LUNs bound to the same class protocol_endpoint LUN.

This property was included in early releases of the REST API for vVols and is maintained for backward compatibility. See the secondary_id property, which replaces id.

  • example: 1

  • readOnly: 1

  • x-ntap-deprecated: 9.13.1

  • Introduced in: 9.10

  • x-nullable: true

partner

partner

The LUN partner that this LUN is bound to. If this LUN is a vvol class LUN, the partner is a protocol_endpoint class LUN.

secondary_id

string

The identifier assigned to the vVol binding, known as the secondary LUN ID. The identifier is unique amongst all class vvol LUNs bound to the same class protocol_endpoint LUN.

The format for a secondary LUN ID is 16 hexadecimal digits (zero-filled) followed by a lower case "h".

vvol

A VMware virtual volume (vVol) binding is an association between a LUN of class protocol_endpoint and a LUN of class vvol. Class protocol_endpoint LUNs are mapped to igroups and granted access using the same configuration as class regular LUNs. When a class vvol LUN is bound to a mapped class protocol_endpoint LUN, VMware can access the class vvol LUN through the class protocol_endpoint LUN mapping.

See link:post-protocols-san-vvol-bindings(#-san-vvol-binding-create)tolearnmoreaboutcreatingvvolbindingsanddelete-protocols-san-vvol-bindings.htmlPOST /protocols/san/vvol-bindings to learn more about creating vVol bindings and [DELETE /protocols/san/vvol-bindings] to learn more about deleting vVol bindings.

There is an added computational cost to retrieving property values for vvol. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

Name Type Description

bindings

array[bindings]

Bindings between the LUN, which must be of class protocol_endpoint or vvol, and LUNs of the opposite class.

A class vvol LUN must be bound to a class protocol_endpoint LUN in order to be accessed. Class protocol_endpoint and vvol LUNs allow many-to-many bindings. A LUN of one class is allowed to be bound to zero or more LUNs of the opposite class. The binding between any two specific LUNs is reference counted. When a binding is created that already exists, the binding count is incremented. When a binding is deleted, the binding count is decremented, but the LUNs remain bound if the resultant reference count is greater than zero. When the binding count reaches zero, the binding is destroyed.

The bindings array contains LUNs of the opposite class of the containing LUN object.

There is an added computational cost to retrieving property values for vvol.bindings. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

is_bound

boolean

Reports if the LUN is part of a VMware virtual volume (vVol) bind relationship. This is true if the LUN is of class protocol_endpoint or vvol and has one or more bindings to a LUN of the opposite class. This is false if the LUN is of class regular or unbound.

lun

A LUN is the logical representation of storage in a storage area network (SAN).

A LUN must be mapped to an initiator group to grant access to the initiator group's initiators (client hosts). Initiators can then access the LUN and perform I/O over a Fibre Channel (FC) fabric using the FC Protocol or a TCP/IP network using iSCSI.

See the LUN object model to learn more about each of the properties supported by the LUN REST API.

A LUN is located within a volume. Optionally, it can be located within a qtree in a volume.

LUN names are paths of the form "/vol/<volume>[/<qtree>]/<lun>" where the qtree name is optional.

A LUN can be created to a specified size using thin or thick provisioning. A LUN can then be renamed, resized, cloned, moved to a different volume and copied. LUNs support the assignment of a QoS policy for performance management or a QoS policy can be assigned to a volume containing one or more LUNs.

</lun></qtree></volume>

Name Type Description

_links

_links

attributes

array[attributes]

An array of name/value pairs optionally stored with the LUN. Attributes are available to callers to persist small amounts of application-specific metadata. They are in no way interpreted by ONTAP.

Attribute names and values must be at least one byte and no more than 4091 bytes in length. The sum of the name and value lengths must be no more than 4092 bytes.

Valid in POST except when creating a LUN clone. A cloned can already have attributes from its source. You can add, modify, and delete the attributes of a LUN clone in separate requests after creation of the LUN.

Attributes can be added/modified/removed for an existing LUN using the /api/storage/luns/{lun.uuid}/attributes endpoint. For further information, see DOC /storage/luns/{lun.uuid}/attributes .

There is an added computational cost to retrieving property values for attributes. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

  • Introduced in: 9.10

  • readCreate: 1

auto_delete

boolean

This property marks the LUN for auto deletion when the volume containing the LUN runs out of space. This is most commonly set on LUN clones.

When set to true, the LUN becomes eligible for automatic deletion when the volume runs out of space. Auto deletion only occurs when the volume containing the LUN is also configured for auto deletion and free space in the volume decreases below a particular threshold.

This property is optional in POST and PATCH. The default value for a new LUN is false.

There is an added computational cost to retrieving this property's value. It is not populated for a GET request unless it is explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

class

string

The class of LUN.

Optional in POST.

clone

clone

This sub-object is used in POST to create a new LUN as a clone of an existing LUN, or PATCH to overwrite an existing LUN as a clone of another. Setting a property in this sub-object indicates that a LUN clone is desired. Consider the following other properties when cloning a LUN: auto_delete, qos_policy, space.guarantee.requested and space.scsi_thin_provisioning_support_enabled.

When used in a PATCH, the patched LUN's data is over-written as a clone of the source and the following properties are preserved from the patched LUN unless otherwise specified as part of the PATCH: class, auto_delete, lun_maps, serial_number, status.state, and uuid.

Persistent reservations for the patched LUN are also preserved.

comment

string

A configurable comment available for use by the administrator. Valid in POST and PATCH.

consistency_group

consistency_group

The LUN's consistency group. This property is populated for LUNs that are members of a consistency group. If the LUN is a member of a child consistency group, the parent consistency group is reported. A LUN's consistency group is the consistency group of its containing volume.

convert

convert

This sub-object is used in POST to convert a valid in-place NVMe namespace to a LUN. Setting a property in this sub-object indicates that a conversion from the specified NVMe namespace to LUN is desired.

copy

copy

This sub-object applies to LUN copy operations. A LUN can be copied with a POST request that supplies copy.source properties.

Copying a LUN is an asynchronous activity begun by a POST request that specifies the source of the copy in the copy.source properties. The data for the LUN is then asynchronously copied from the source to the destination. The time required to complete the copy depends on the size of the LUN and the load on the cluster. The copy sub-object is populated while a LUN copy is in progress and for two (2) minutes following completion of a copy.

While LUNs are being copied, the status of the LUN copy operations can be obtained using a GET of the source or destination LUN that requests the copy properties. If the LUN is the source LUN for one or more copy operations, the copy.destinations array is populated in GET. If the containing LUN is the destination LUN for a copy operation, the copy.source sub-object is populated in GET. The LUN copy operation can be further modified using a PATCH on the properties on the copy.source sub-object of the copy destination LUN.

There is an added computational cost to retrieving property values for copy. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

create_time

string

The time the LUN was created.

enabled

boolean

The enabled state of the LUN. LUNs can be disabled to prevent access to the LUN. Certain error conditions also cause the LUN to become disabled. If the LUN is disabled, check the status.state property to determine if the LUN is administratively disabled (offline) or has become disabled as a result of an error. A LUN in an error condition can be brought online by setting the enabled property to true or brought administratively offline by setting the enabled property to false. Upon creation, a LUN is enabled by default. Valid in PATCH.

location

location

The location of the LUN within the ONTAP cluster. LUNs support rename and move between volumes. Valid in POST and PATCH.

  • Introduced in: 9.6

lun_maps

array[lun_maps]

The LUN maps with which the LUN is associated.

There is an added computational cost to retrieving property values for lun_maps. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more. These properties are supported for GET only.

metric

metric

Performance numbers, such as IOPS latency and throughput.

movement

movement

This sub-object applies to LUN movement between volumes. A LUN can be moved to a new volume with a PATCH request that changes either the volume portion of property name, location.volume.uuid, or location.volume.name. If the volume is changed using more than one of these properties, the supplied properties used must refer to the same volume.

Moving a LUN between volumes is an asynchronous activity begun by a PATCH request. The data for the LUN is then asynchronously copied from the source volume to the destination volume. The time required to complete the move depends on the size of the LUN and the load on the cluster. The movement sub-object is populated while a LUN movement is in progress and for two (2) minutes following completion of a movement.

While the LUN is being moved, the status of the LUN movement operation can be obtained using a GET for the LUN that requests the movement properties. The LUN movement operation can be further modified using a PATCH on the properties on the movement sub-object.

There is an added computational cost to retrieving property values for movement. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

name

string

The name of the LUN. Valid in POST and PATCH.

A LUN is located within a volume. Optionally, it can be located within a qtree in a volume.

LUN names are paths of the form "/vol/<volume>[/<qtree>]/<lun>" where the qtree name is optional.

A PATCH that modifies the qtree and/or base name portion of the LUN path is considered a rename operation.

A PATCH that modifies the volume portion of the LUN path begins an asynchronous LUN movement operation.

os_type

string

The operating system type of the LUN.

Required in POST when creating a LUN that is not a clone of another. Disallowed in POST when creating a LUN clone.

provisioning_options

provisioning_options

Options that are applied to the operation.

qos_policy

qos_policy

The QoS policy for the LUN. Both traditional and adaptive QoS policies are supported. If both property qos_policy.uuid and qos_policy.name are specified in the same request, they must refer to the same QoS policy. To remove the QoS policy from a LUN, leaving it with no QoS policy, set the property qos_policy.name to an empty string ("") in a PATCH request. Valid in POST and PATCH.

serial_number

string

The LUN serial number. The serial number is generated by ONTAP when the LUN is created.

  • maxLength: 12

  • minLength: 12

  • readOnly: 1

  • Introduced in: 9.6

  • x-nullable: true

space

space

The storage space related properties of the LUN.

statistics

statistics

These are raw performance numbers, such as IOPS latency and throughput. These numbers are aggregated across all nodes in the cluster and increase with the uptime of the cluster.

status

status

Status information about the LUN.

svm

svm

The SVM in which the LUN is located.

uuid

string

The unique identifier of the LUN. The UUID is generated by ONTAP when the LUN is created.

  • example: 1cd8a442-86d1-11e0-ae1c-123478563412

  • readOnly: 1

  • Introduced in: 9.6

  • x-nullable: true

vvol

vvol

A VMware virtual volume (vVol) binding is an association between a LUN of class protocol_endpoint and a LUN of class vvol. Class protocol_endpoint LUNs are mapped to igroups and granted access using the same configuration as class regular LUNs. When a class vvol LUN is bound to a mapped class protocol_endpoint LUN, VMware can access the class vvol LUN through the class protocol_endpoint LUN mapping.

See link:post-protocols-san-vvol-bindings(#-san-vvol-binding-create)tolearnmoreaboutcreatingvvolbindingsanddelete-protocols-san-vvol-bindings.htmlPOST /protocols/san/vvol-bindings to learn more about creating vVol bindings and [DELETE /protocols/san/vvol-bindings] to learn more about deleting vVol bindings.

There is an added computational cost to retrieving property values for vvol. They are not populated for a GET request unless explicitly requested using the fields query parameter. See Requesting specific fields to learn more.
Name Type Description

_links

_links

uuid

string

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

returned_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.