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Retrieve attributes of the FlexCache volume in the cluster

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GET /storage/flexcache/flexcaches/{uuid}

Introduced In: 9.6

Retrieves attributes of the FlexCache in the cluster.

Expensive properties

There is an added computational cost to retrieving values for these properties. They are included by default in GET. The recommended method to use this API is to filter and retrieve only the required fields. See Requesting specific fields to learn more.

  • origins.ip_address - IP address of origin.

  • origins.size - Physical size of origin.

  • origins.state - State of origin.

  • size - Physical size of FlexCache.

  • guarantee.type - Space guarantee style of FlexCache.

  • aggregates.name or aggregates.uuid - Name or UUID of aggregrate of FlexCache volume.

  • path - Fully-qualified path of the owning SVM's namespace where the FlexCache is mounted.

  • volume flexcache show

Learn more

Parameters

Name Type In Required Description

uuid

string

path

True

Unique identifier of FlexCache.

fields

array[string]

query

False

Specify the fields to return.

Response

Status: 200, Ok
Name Type Description

_links

_links

aggregates

array[aggregates]

atime_scrub

atime_scrub

FlexCache volume atime-based scrub

cifs_change_notify

cifs_change_notify

Notifies that a change has been made to the FlexCache volume CIFS.

constituents_per_aggregate

integer

Number of FlexCache constituents per aggregate when the 'aggregates' field is mentioned.

dr_cache

boolean

If set to true, a DR cache is created.

global_file_locking_enabled

boolean

Specifies whether or not a FlexCache volume has global file locking mode enabled. Global file locking mode is a mode where protocol read locking semantics are enforced across all FlexCaches and origins of a FlexCache volume. When global file locking mode is enabled, the "is_disconnected_mode_off_for_locks" flag is always set to "true".

guarantee

guarantee

name

string

FlexCache name

origins

array[flexcache_relationship]

override_encryption

boolean

If set to true, a plaintext FlexCache volume for an encrypted origin volume is created.

path

string

The fully-qualified path in the owning SVM's namespace at which the FlexCache is mounted. The path is case insensitive and must be unique within a SVM's namespace. Path must begin with '/' and must not end with '/'. Only one FlexCache be mounted at any given junction path.

prepopulate

prepopulate

FlexCache prepopulate

relative_size

relative_size

FlexCache Relative Size

size

integer

Physical size of the FlexCache. The recommended size for a FlexCache is 10% of the origin volume. The minimum FlexCache constituent size is 1GB.

svm

svm

FlexCache SVM

use_tiered_aggregate

boolean

Specifies whether or not a Fabricpool-enabled aggregate can be used in FlexCache creation. The use_tiered_aggregate is only used when auto-provisioning a FlexCache volume.

uuid

string

FlexCache UUID. Unique identifier for the FlexCache.

writeback

writeback

FlexCache Writeback
Example response 
{
  "_links": {
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "aggregates": [
    {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "aggr1",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    }
  ],
  "guarantee": {
    "type": "string"
  },
  "name": "vol1",
  "origins": [
    {
      "cluster": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "name": "cluster1",
        "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
      },
      "create_time": "2018-06-04 15:00:00 -0400",
      "ip_address": "10.10.10.7",
      "size": 0,
      "state": "string",
      "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"
      }
    }
  ],
  "path": "/user/my_fc",
  "prepopulate": {
    "dir_paths": [
      "/dir1"
    ],
    "exclude_dir_paths": [
      "/dir1/dir2"
    ]
  },
  "svm": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "svm1",
    "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
  },
  "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
}

Error

Status: Default, Error
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

aggregates

Aggregate

Name Type Description

_links

_links

name

string

uuid

string

atime_scrub

FlexCache volume atime-based scrub

Name Type Description

enabled

boolean

Specifies whether scrubbing of inactive files based on atime is enabled for the FlexCache volume. When scrubbing is enabled, files whose atime is older than the specified duration are evicted from the cache volume. The scrubber runs once a day and looks for files whose atime has exceeded the provisioned value.

period

integer

Specifies the atime duration in days after which a cached file is considered inactive. Inactive files are purged from the FlexCache volumes when the scrubber runs once a day.

cifs_change_notify

Notifies that a change has been made to the FlexCache volume CIFS.

Name Type Description

enabled

boolean

Specifies whether a CIFS change notification is enabled for the FlexCache volume.

guarantee

Name Type Description

type

string

The type of space guarantee of this volume in the aggregate.

cluster

Name Type Description

_links

_links

name

string

uuid

string

svm

SVM, applies only to SVM-scoped objects.

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.

volume

Name Type Description

_links

_links

name

string

The name of the volume. This field cannot be specified in a POST or 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

flexcache_relationship

Name Type Description

cluster

cluster

create_time

string

Creation time of the relationship.

ip_address

string

Cluster managerment IP of the remote cluster.

size

integer

Size of the remote volume.

state

string

Volume state

svm

svm

SVM, applies only to SVM-scoped objects.

volume

volume

prepopulate

FlexCache prepopulate

Name Type Description

dir_paths

array[string]

exclude_dir_paths

array[string]

recurse

boolean

Specifies whether or not the prepopulate action should search through the dir_paths recursively. If not set, the default value true is used.

relative_size

FlexCache Relative Size

Name Type Description

enabled

boolean

Specifies whether the relative sizing is enabled for the FlexCache volume. Relative sizing is introduced as a part of follow the origin feature. When relative sizing is enabled, it blocks any modifications done manually in the absolute size of the FlexCache volume. The size of the FlexCache volume is calculated and entered automatically based on the size of the origin volume.

percentage

integer

Specifies the percent size the FlexCache volume should have relative to the total size of the origin volume. This property is only relevant to a FlexCache volume that has the relative size property enabled.

svm

FlexCache SVM

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.

writeback

FlexCache Writeback

Name Type Description

enabled

boolean

Indicates whether or not writeback is enabled for the FlexCache volume. Writeback is a storage method where data is first written to the FlexCache volume and then written to the origin of a FlexCache volume.

error_arguments

Name Type Description

code

string

Argument code

message

string

Message argument

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.