Retrieve an NVMe namespace

09/11/2024 Contributors

GET /storage/namespaces/{uuid}

Introduced In: 9.6

Retrieves an NVMe namespace.

Expensive properties

There is an added computational cost to retrieving values for these properties. They are not included by default in GET results and must be explicitly requested using the fields query parameter. See Requesting specific fields to learn more.

auto_delete
subsystem_map.*
status.mapped
statistics.*
metric.*

vserver nvme namespace show
vserver nvme subsystem map show

Learn more

DOC /storage/namespaces

Parameters

Name	Type	In	Required	Description
uuid	string	path	True	The unique identifier of the NVMe namespace to retrieve.
fields	array[string]	query	False	Specify the fields to return.

Name

Type

Required

Description

uuid

string

path

True

The unique identifier of the NVMe namespace to retrieve.

fields

array[string]

query

False

Specify the fields to return.

Response

Status: 200, Ok

Name Type Description

Name	Type	Description
_links	_links
auto_delete	boolean	This property marks the NVMe namespace for auto deletion when the volume containing the namespace runs out of space. This is most commonly set on namespace clones. When set to true, the NVMe namespace becomes eligible for automatic deletion when the volume runs out of space. Auto deletion only occurs when the volume containing the namespace 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 NVMe namespace is false. There is an added computational cost to retrieving this property's value. It is not populated for either a collection GET or an instance GET unless it is explicitly requested using the `fields` query parameter. See Requesting specific fields to learn more.
clone	clone	This sub-object is used in POST to create a new NVMe namespace as a clone of an existing namespace, or PATCH to overwrite an existing namespace as a clone of another. Setting a property in this sub-object indicates that a namespace clone is desired. When used in a PATCH, the patched NVMe namespace's data is over-written as a clone of the source and the following properties are preserved from the patched namespace unless otherwise specified as part of the PATCH: `auto_delete` (unless specified in the request), `subsystem_map`, `status.state`, and `uuid`.
comment	string	A configurable comment available for use by the administrator. Valid in POST and PATCH.
consistency_group	consistency_group	The NVMe namespace's consistency group. This property is populated for NVMe namespaces that are members of a consistency group. If the NVMe namespace is a member of a child consistency group, the parent consistency group is reported. Platform Specifics Unified ONTAP: An NVMe namespace's consistency group is the consistency group of its containing volume. ASA.Next: An NVMe namespace is optionally associated directly with a consistency group. readOnly: 1
convert	convert	This sub-object is used in POST to convert a valid in-place LUN to an NVMe namespace. Setting a property in this sub-object indicates that a conversion from the specified LUN to NVMe namespace is desired.
create_time	string	The time the NVMe namespace was created.
enabled	boolean	The enabled state of the NVMe namespace. Certain error conditions cause the namespace to become disabled. If the namespace is disabled, you can check the `state` property to determine what error disabled the namespace. An NVMe namespace is enabled automatically when it is created.
encryption	encryption	Encryption related properties for the NVMe namespace. Platform Specifics Unified ONTAP: These properties are not available on the NVMe namespace object in the REST API and are not reported for GET requests. See the containing volume object for this information. ASA.Next: Available for GET, POST and PATCH.
location	location	The location of the NVMe namespace within the ONTAP cluster. Valid in POST. NVMe namespaces do not support rename, or movement between volumes. Introduced in: 9.6 readCreate: 1
metric	metric	Performance numbers, such as IOPS latency and throughput
name	string	The fully qualified path name of the NVMe namespace composed of a "/vol" prefix, the volume name, the (optional) qtree name and base name of the namespace. Valid in POST. NVMe namespaces do not support rename, or movement between volumes.
os_type	string	The operating system type of the NVMe namespace. Required in POST when creating an NVMe namespace that is not a clone of another. Disallowed in POST when creating a namespace clone.
qos_policy	qos_policy	The QoS policy for the NVMe namspace. 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 an NVMe namspace, leaving it with no QoS policy, set property `qos_policy.name` to an empty string ("") in a PATCH request. Valid in POST and PATCH. Platform Specifics Unified ONTAP: These properties are not available on the NVMe namespace object in the REST API and are not reported for GET requests. You can set a QoS policy on the containing volume. ASA.Next: An NVMe namespace is optionally associated directly with a QoS policy.
space	space	The storage space related properties of the NVMe namespace.
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 NVMe namespace.
subsystem_map	subsystem_map	The NVMe subsystem with which the NVMe namespace is associated. A namespace can be mapped to zero (0) or one (1) subsystems. There is an added computational cost to retrieving property values for `subsystem_map`. They are not populated for either a collection GET or an instance GET unless explicitly requested using the `fields` query parameter. See Requesting specific fields to learn more.
svm	svm	SVM, applies only to SVM-scoped objects.
uuid	string	The unique identifier of the NVMe namespace.

_links

auto_delete

boolean

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

When set to true, the NVMe namespace becomes eligible for automatic deletion when the volume runs out of space. Auto deletion only occurs when the volume containing the namespace 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 NVMe namespace is false.

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

clone

This sub-object is used in POST to create a new NVMe namespace as a clone of an existing namespace, or PATCH to overwrite an existing namespace as a clone of another. Setting a property in this sub-object indicates that a namespace clone is desired.

When used in a PATCH, the patched NVMe namespace's data is over-written as a clone of the source and the following properties are preserved from the patched namespace unless otherwise specified as part of the PATCH: auto_delete (unless specified in the request), subsystem_map, status.state, and uuid.

comment

string

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

consistency_group

The NVMe namespace's consistency group. This property is populated for NVMe namespaces that are members of a consistency group. If the NVMe namespace is a member of a child consistency group, the parent consistency group is reported.

Platform Specifics

Unified ONTAP: An NVMe namespace's consistency group is the consistency group of its containing volume.
ASA.Next: An NVMe namespace is optionally associated directly with a consistency group.
readOnly: 1

convert

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

create_time

string

The time the NVMe namespace was created.

enabled

boolean

The enabled state of the NVMe namespace. Certain error conditions cause the namespace to become disabled. If the namespace is disabled, you can check the state property to determine what error disabled the namespace. An NVMe namespace is enabled automatically when it is created.

encryption

Encryption related properties for the NVMe namespace.

Platform Specifics

Unified ONTAP: These properties are not available on the NVMe namespace object in the REST API and are not reported for GET requests. See the containing volume object for this information.
ASA.Next: Available for GET, POST and PATCH.

location

The location of the NVMe namespace within the ONTAP cluster. Valid in POST.

NVMe namespaces do not support rename, or movement between volumes.

Introduced in: 9.6
readCreate: 1

metric

Performance numbers, such as IOPS latency and throughput

name

string

The fully qualified path name of the NVMe namespace composed of a "/vol" prefix, the volume name, the (optional) qtree name and base name of the namespace. Valid in POST.

NVMe namespaces do not support rename, or movement between volumes.

os_type

string

The operating system type of the NVMe namespace.

Required in POST when creating an NVMe namespace that is not a clone of another. Disallowed in POST when creating a namespace clone.

qos_policy

The QoS policy for the NVMe namspace. 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 an NVMe namspace, leaving it with no QoS policy, set property qos_policy.name to an empty string ("") in a PATCH request. Valid in POST and PATCH.

Platform Specifics

Unified ONTAP: These properties are not available on the NVMe namespace object in the REST API and are not reported for GET requests. You can set a QoS policy on the containing volume.
ASA.Next: An NVMe namespace is optionally associated directly with a QoS policy.

space

The storage space related properties of the NVMe namespace.

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 information about the NVMe namespace.

subsystem_map

The NVMe subsystem with which the NVMe namespace is associated. A namespace can be mapped to zero (0) or one (1) subsystems.

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

svm

SVM, applies only to SVM-scoped objects.

uuid

string

The unique identifier of the NVMe namespace.

Example response

{
  "_links": {
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "clone": {
    "source": {
      "name": "/vol/volume1/namespace1",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    }
  },
  "comment": "string",
  "consistency_group": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "cg1",
    "uuid": "4abc2317-4332-9d37-93a0-20bd29c22df0"
  },
  "convert": {
    "lun": {
      "name": "/vol/volume1/lun1",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    }
  },
  "create_time": "2018-06-04 15:00:00 -0400",
  "encryption": {
    "action": "string",
    "key_create_time": "2022-01-01 14:00:00 -0500",
    "key_id": "string",
    "key_manager_attribute": "CRN=v1:bluemix:public:containers-kubernetes:us-south:a/asdfghjkl1234:asdfghjkl1234:worker:kubernetes-asdfghjkl-worker1",
    "state": "string",
    "status": {
      "code": "string",
      "message": "string"
    },
    "type": "string"
  },
  "location": {
    "namespace": "namespace1",
    "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"
    }
  },
  "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"
  },
  "name": "/vol/volume1/qtree1/namespace1",
  "os_type": "string",
  "qos_policy": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "qos1",
    "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
  },
  "space": {
    "block_size": 512,
    "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"
  },
  "subsystem_map": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "anagrpid": "00103050h",
    "nsid": "00000001h",
    "subsystem": {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "name": "subsystem1",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
    }
  },
  "svm": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "svm1",
    "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
  },
  "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
}

Error

Status: Default

ONTAP Error Response Codes

Error Code	Description
72090006	The specified namespace was not found.
72090007	The specified namespace was not found.

Error Code

Description

72090006

The specified namespace was not found.

72090007

The specified namespace was not found.

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

Name	Type	Description
error	returned_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

Name

Type

Description

href

string

_links

Name	Type	Description
self	href

Name

Type

Description

self

href

source

The source NVMe namespace for a namespace 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 namespace.

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

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

Name	Type	Description
name	string	The fully qualified path name of the clone source NVMe namespace composed of a "/vol" prefix, the volume name, the (optional) qtree name and base name of the namespace. Valid in POST and PATCH.
uuid	string	The unique identifier of the clone source NVMe namespace. Valid in POST and PATCH.

Name

Type

Description

name

string

The fully qualified path name of the clone source NVMe namespace composed of a "/vol" prefix, the volume name, the (optional) qtree name and base name of the namespace. Valid in POST and PATCH.

uuid

string

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

clone

Name Type Description

Name	Type	Description
source	source	The source NVMe namespace for a namespace 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 namespace. Valid in POST to create a new NVMe namespace as a clone of the source. Valid in PATCH to overwrite an existing NVMe namespace's data as a clone of another.

source

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

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

consistency_group

=== Platform Specifics

Unified ONTAP: An NVMe namespace's consistency group is the consistency group of its containing volume.
ASA.Next: An NVMe namespace is optionally associated directly with a consistency group.

Name	Type	Description
_links	_links
name	string	The name of the consistency group.
uuid	string	The unique identifier of the consistency group.

Name

Type

Description

_links

name

string

The name of the consistency group.

uuid

string

The unique identifier of the consistency group.

lun

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

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

Name	Type	Description
name	string	The fully qualified path name of the source LUN composed of a "/vol" prefix, the volume name, the (optional) qtree name and base name of the LUN. Valid in POST.
uuid	string	The unique identifier of the source LUN. Valid in POST.

Name

Type

Description

name

string

The fully qualified path name of the source LUN composed of a "/vol" prefix, the volume name, the (optional) qtree name and base name of the LUN. Valid in POST.

uuid

string

The unique identifier of the source LUN. Valid in POST.

convert

Name Type Description

Name	Type	Description
lun	lun	The source LUN for convert operation. This can be specified using property `convert.lun.uuid` or `convert.lun.name`. If both properties are supplied, they must refer to the same LUN. Valid in POST. A convert request from LUN to NVMe namespace cannot be combined with setting any other namespace properties. All other properties of the converted NVMe namespace come from the source LUN.

lun

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

status

Name	Type	Description
code	string	Encryption progress message code.
message	string	Encryption progress message.

Name

Type

Description

code

string

Encryption progress message code.

message

string

Encryption progress message.

encryption

Encryption related properties for the NVMe namespace.

=== Platform Specifics

Unified ONTAP: These properties are not available on the NVMe namespace object in the REST API and are not reported for GET requests. See the containing volume object for this information.
ASA.Next: Available for GET, POST and PATCH.

Name Type Description

Name	Type	Description
action	string	This property can be used to pause an ongoing rekey or conversion operation or resume a paused rekey or conversion operation. Valid in PATCH. The following actions are supported for this field: conversion_pause - Pause an encryption conversion operation currently in progress. conversion_resume - Resume a paused encryption conversion operation. rekey_pause - Pause an encryption rekey operation currently in progress. rekey_resume - Resume a paused encryption rekey operation.
enabled	boolean	Creates an encrypted or an unencrypted NVMe namespace. For POST, when set to `true`, a new key is generated and used to encrypt the NVMe namespace. The underlying SVM must be configured with the key manager. When set to `false`, the NVMe namespace created will be unencrypted. For PATCH, when set to `true`, the API encrypts an unencrypted NVMe namespace. An encrypted NVMe namespace cannot be PATCHED to `false`.
key_create_time	string	Encryption key creation time of the NVMe namespace.
key_id	string	The key ID used for creating encrypted NVMe namespace. A new key-id is generated for creating an encrypted NVMe namespace. This key-id is associated with the generated key.
key_manager_attribute	string	Specifies an additional key manager attribute that is an identifier-value pair, separated by `=`. For example, CRN=unique-value. This parameter is required when using the POST method and an IBM Key Lore key manager is configured on the SVM.
rekey	boolean	If set to `true`, re-encrypts the NVMe namespace with a new key. Valid in PATCH.
state	string	NVMe namespace encryption state. encrypted - The NVMe namespace is completely encrypted. encrypting - Encryption operation is in progress. rekeying - Encryption of NVMe namespace with a new key is in progress. unencrypted - The NVMe namespace is not encrypted.
status	status
type	string	NVMe namespace encryption type. none - The NVMe namespace is not encrypted. volume - The NVMe namespace is encrypted with namespace-level encryption.

action

string

This property can be used to pause an ongoing rekey or conversion operation or resume a paused rekey or conversion operation. Valid in PATCH.

The following actions are supported for this field:

conversion_pause - Pause an encryption conversion operation currently in progress.
conversion_resume - Resume a paused encryption conversion operation.
rekey_pause - Pause an encryption rekey operation currently in progress.
rekey_resume - Resume a paused encryption rekey operation.

enabled

boolean

Creates an encrypted or an unencrypted NVMe namespace. For POST, when set to true, a new key is generated and used to encrypt the NVMe namespace. The underlying SVM must be configured with the key manager. When set to false, the NVMe namespace created will be unencrypted. For PATCH, when set to true, the API encrypts an unencrypted NVMe namespace. An encrypted NVMe namespace cannot be PATCHED to false.

key_create_time

string

Encryption key creation time of the NVMe namespace.

key_id

string

The key ID used for creating encrypted NVMe namespace. A new key-id is generated for creating an encrypted NVMe namespace. This key-id is associated with the generated key.

key_manager_attribute

string

Specifies an additional key manager attribute that is an identifier-value pair, separated by =. For example, CRN=unique-value. This parameter is required when using the POST method and an IBM Key Lore key manager is configured on the SVM.

rekey

boolean

If set to true, re-encrypts the NVMe namespace with a new key. Valid in PATCH.

state

string

NVMe namespace encryption state.

encrypted - The NVMe namespace is completely encrypted.
encrypting - Encryption operation is in progress.
rekeying - Encryption of NVMe namespace with a new key is in progress.
unencrypted - The NVMe namespace is not encrypted.

status

type

string

NVMe namespace encryption type.

none - The NVMe namespace is not encrypted.
volume - The NVMe namespace is encrypted with namespace-level encryption.

node

The cluster node that hosts the NVMe namespace.

Name	Type	Description
_links	_links
name	string
uuid	string

Name

Type

Description

_links

name

string

uuid

string

qtree

The qtree in which the NVMe namespace is optionally located. Valid in POST.

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

NVMe namespaces do not support rename.

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.

Name

Type

Description

_links

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 NVMe namespace is located. Valid in POST.

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.

NVMe namespaces do not support movement between volumes.

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

Name

Type

Description

_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

location

The location of the NVMe namespace within the ONTAP cluster. Valid in POST.

NVMe namespaces do not support rename, or movement between volumes.

Name Type Description

Name	Type	Description
namespace	string	The base name component of the NVMe namespace. Valid in POST. If properties `name` and `location.namespace` are specified in the same request, they must refer to the base name. NVMe namespaces do not support rename.
node	node	The cluster node that hosts the NVMe namespace.
qtree	qtree	The qtree in which the NVMe namespace is optionally located. Valid in POST. If properties `name` and `location.qtree.name` and/or `location.qtree.uuid` are specified in the same request, they must refer to the same qtree. NVMe namespaces do not support rename.
volume	volume	The volume in which the NVMe namespace is located. Valid in POST. 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. NVMe namespaces do not support movement between volumes.

namespace

string

The base name component of the NVMe namespace. Valid in POST.

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

NVMe namespaces do not support rename.

node

The cluster node that hosts the NVMe namespace.

qtree

The qtree in which the NVMe namespace is optionally located. Valid in POST.

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

NVMe namespaces do not support rename.

volume

The volume in which the NVMe namespace is located. Valid in POST.

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.

NVMe namespaces do not support movement between volumes.

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	Peformance metric for write I/O operations.

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

Peformance 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	Peformance metric for write I/O operations.

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

Peformance metric for write I/O operations.

throughput

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

Name	Type	Description
read	integer	Performance metric for read I/O operations.
total	integer	Performance metric aggregated over all types of I/O operations.
write	integer	Peformance metric for write I/O operations.

Name

Type

Description

read

integer

Performance metric for read I/O operations.

total

integer

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

write

integer

Peformance 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	Any errors associated with the sample. For example, if the aggregation of data over multiple nodes fails then any of the partial errors might be returned, "ok" on success, or "error" on any 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.

Name

Type

Description

_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

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

latency

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

status

string

Any errors associated with the sample. For example, if the aggregation of data over multiple nodes fails then any of the partial errors might be returned, "ok" on success, or "error" on any 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

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

timestamp

string

The timestamp of the performance data.

qos_policy

=== Platform Specifics

Unified ONTAP: These properties are not available on the NVMe namespace object in the REST API and are not reported for GET requests. You can set a QoS policy on the containing volume.
ASA.Next: An NVMe namespace is optionally associated directly with a QoS policy.

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.

Name

Type

Description

_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 NVMe namespace.

Name	Type	Description
requested	boolean	The requested space reservation policy for the NVMe namespace. If true, a space reservation is requested for the namespace; if false, the namespace is thin provisioned. Guaranteeing a space reservation request for a namespace requires that the volume in which the namespace resides also be space reserved and that the fractional reserve for the volume be 100%. The space reservation policy for an NVMe namespace is determined by ONTAP. readOnly: 1 Introduced in: 9.6 x-nullable: true
reserved	boolean	Reports if the NVMe namespace is space guaranteed. This property is true if a space guarantee is requested and the containing volume and aggregate support the request. This property is false if a space guarantee is not requested or if a space guarantee is requested and either the containing volume and aggregate do not support the request.

Name

Type

Description

requested

boolean

The requested space reservation policy for the NVMe namespace. If true, a space reservation is requested for the namespace; if false, the namespace is thin provisioned. Guaranteeing a space reservation request for a namespace requires that the volume in which the namespace resides also be space reserved and that the fractional reserve for the volume be 100%.

The space reservation policy for an NVMe namespace is determined by ONTAP.

readOnly: 1
Introduced in: 9.6
x-nullable: true

reserved

boolean

Reports if the NVMe namespace is space guaranteed.

This property is true if a space guarantee is requested and the containing volume and aggregate support the request. This property is false if a space guarantee is not requested or if a space guarantee is requested and either the containing volume and aggregate do not support the request.

space

The storage space related properties of the NVMe namespace.

Name	Type	Description
block_size	integer	The size of blocks in the namespace in bytes. Valid in POST when creating an NVMe namespace that is not a clone of another. Disallowed in POST when creating a namespace clone. Valid in POST.
guarantee	guarantee	Properties that request and report the space guarantee for the NVMe namespace.
size	integer	The total provisioned size of the NVMe namespace. Valid in POST and PATCH. The NVMe namespace size can be increased but not be made smaller using the REST interface. The maximum and minimum sizes listed here are the absolute maximum and absolute minimum sizes in bytes. The maximum size is variable with respect to large NVMe namespace support in ONTAP. If large namespaces are supported, the maximum size is 128 TB (140737488355328 bytes) and if not supported, the maximum size is just under 16 TB (17557557870592 bytes). The minimum size supported is always 4096 bytes. 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 NVMe namespace. This value is the total space consumed in the volume by the NVMe namespace, including filesystem overhead, but excluding prefix and suffix streams. Due to internal filesystem overhead and the many ways NVMe filesystems and applications utilize blocks within a namespace, this value does not necessarily reflect actual consumption/availability from the perspective of the filesystem or application. Without specific knowledge of how the namespace blocks are utilized outside of ONTAP, this property should not be used and 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

Name

Type

Description

block_size

integer

The size of blocks in the namespace in bytes.

Valid in POST when creating an NVMe namespace that is not a clone of another. Disallowed in POST when creating a namespace clone. Valid in POST.

guarantee

Properties that request and report the space guarantee for the NVMe namespace.

size

integer

The total provisioned size of the NVMe namespace. Valid in POST and PATCH. The NVMe namespace size can be increased but not be made smaller using the REST interface.

The maximum and minimum sizes listed here are the absolute maximum and absolute minimum sizes in bytes. The maximum size is variable with respect to large NVMe namespace support in ONTAP. If large namespaces are supported, the maximum size is 128 TB (140737488355328 bytes) and if not supported, the maximum size is just under 16 TB (17557557870592 bytes). The minimum size supported is always 4096 bytes.

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 NVMe namespace.

This value is the total space consumed in the volume by the NVMe namespace, including filesystem overhead, but excluding prefix and suffix streams. Due to internal filesystem overhead and the many ways NVMe filesystems and applications utilize blocks within a namespace, this value does not necessarily reflect actual consumption/availability from the perspective of the filesystem or application. Without specific knowledge of how the namespace blocks are utilized outside of ONTAP, this property should not be used and 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 should 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	Peformance metric for write I/O operations.

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

Peformance metric for write I/O operations.

latency_raw

The raw latency in microseconds observed at the storage object. This should 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	Peformance metric for write I/O operations.

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

Peformance metric for write I/O operations.

throughput_raw

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

Name	Type	Description
read	integer	Performance metric for read I/O operations.
total	integer	Performance metric aggregated over all types of I/O operations.
write	integer	Peformance metric for write I/O operations.

Name

Type

Description

read

integer

Performance metric for read I/O operations.

total

integer

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

write

integer

Peformance 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 should 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 should be divided by the raw IOPS value to calculate the average latency per I/O operation.
status	string	Any errors associated with the sample. For example, if the aggregation of data over multiple nodes fails then any of the partial errors might be returned, "ok" on success, or "error" on any 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 should 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.

Name

Type

Description

iops_raw

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

latency_raw

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

status

string

Any errors associated with the sample. For example, if the aggregation of data over multiple nodes fails then any of the partial errors might be returned, "ok" on success, or "error" on any 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 bytes observed at the storage object. This should 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 NVMe namespace.

Name Type Description

Name	Type	Description
container_state	string	The state of the volume and aggregate that contain the NVMe namespace. Namespaces are only available when their containers are available.
mapped	boolean	Reports if the NVMe namespace is mapped to an NVMe subsystem. There is an added computational cost to retrieving this property's value. It is not populated for either a collection GET or an instance GET unless it is explicitly requested using the `fields` query parameter. See Requesting specific fields to learn more.
read_only	boolean	Reports if the NVMe namespace allows only read access.
state	string	The state of the NVMe namespace. Normal states for a namespace are online and offline. Other states indicate errors.

container_state

string

The state of the volume and aggregate that contain the NVMe namespace. Namespaces are only available when their containers are available.

mapped

boolean

Reports if the NVMe namespace is mapped to an NVMe subsystem.

read_only

boolean

Reports if the NVMe namespace allows only read access.

state

string

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

subsystem

The NVMe subsystem to which the NVMe namespace is mapped.

Name	Type	Description
_links	_links
name	string	The name of the NVMe subsystem.
uuid	string	The unique identifier of the NVMe subsystem.

Name

Type

Description

_links

name

string

The name of the NVMe subsystem.

uuid

string

The unique identifier of the NVMe subsystem.

subsystem_map

The NVMe subsystem with which the NVMe namespace is associated. A namespace can be mapped to zero (0) or one (1) subsystems.

Name	Type	Description
_links	_links
anagrpid	string	The Asymmetric Namespace Access Group ID (ANAGRPID) of the NVMe namespace. The format for an ANAGRPID is 8 hexadecimal digits (zero-filled) followed by a lower case "h".
nsid	string	The NVMe namespace identifier. This is an identifier used by an NVMe controller to provide access to the NVMe namespace. The format for an NVMe namespace identifier is 8 hexadecimal digits (zero-filled) followed by a lower case "h".
subsystem	subsystem	The NVMe subsystem to which the NVMe namespace is mapped.

Name

Type

Description

_links

anagrpid

string

The Asymmetric Namespace Access Group ID (ANAGRPID) of the NVMe namespace.

The format for an ANAGRPID is 8 hexadecimal digits (zero-filled) followed by a lower case "h".

nsid

string

The NVMe namespace identifier. This is an identifier used by an NVMe controller to provide access to the NVMe namespace.

The format for an NVMe namespace identifier is 8 hexadecimal digits (zero-filled) followed by a lower case "h".

subsystem

The NVMe subsystem to which the NVMe namespace is mapped.

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.

Name

Type

Description

_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.

error_arguments

Name	Type	Description
code	string	Argument code
message	string	Message argument

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.

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.

Retrieve an NVMe namespace

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Parameters

Response

Platform Specifics

Platform Specifics

Platform Specifics

Error

Definitions