Retrieve NVMe subsystems
GET /protocols/nvme/subsystems
Introduced In: 9.6
Retrieves NVMe subsystems.
Related ONTAP commands
- 
vserver nvme subsystem host show - 
vserver nvme subsystem map show - 
vserver nvme subsystem show 
Learn more
Parameters
| Name | Type | In | Required | Description | 
|---|---|---|---|---|
hosts.nqn  | 
string  | 
query  | 
False  | 
Filter by hosts.nqn  | 
target_nqn  | 
string  | 
query  | 
False  | 
Filter by target_nqn 
  | 
os_type  | 
string  | 
query  | 
False  | 
Filter by os_type  | 
svm.uuid  | 
string  | 
query  | 
False  | 
Filter by svm.uuid  | 
svm.name  | 
string  | 
query  | 
False  | 
Filter by svm.name  | 
uuid  | 
string  | 
query  | 
False  | 
Filter by uuid  | 
name  | 
string  | 
query  | 
False  | 
Filter by name 
  | 
comment  | 
string  | 
query  | 
False  | 
Filter by comment 
  | 
io_queue.default.count  | 
integer  | 
query  | 
False  | 
Filter by io_queue.default.count 
  | 
io_queue.default.depth  | 
integer  | 
query  | 
False  | 
Filter by io_queue.default.depth 
  | 
serial_number  | 
string  | 
query  | 
False  | 
Filter by serial_number 
  | 
delete_on_unmap  | 
boolean  | 
query  | 
False  | 
Filter by delete_on_unmap 
  | 
vendor_uuids  | 
string  | 
query  | 
False  | 
Filter by vendor_uuids 
  | 
subsystem_maps.nsid  | 
string  | 
query  | 
False  | 
Filter by subsystem_maps.nsid  | 
subsystem_maps.anagrpid  | 
string  | 
query  | 
False  | 
Filter by subsystem_maps.anagrpid  | 
subsystem_maps.namespace.uuid  | 
string  | 
query  | 
False  | 
Filter by subsystem_maps.namespace.uuid  | 
subsystem_maps.namespace.name  | 
string  | 
query  | 
False  | 
Filter by subsystem_maps.namespace.name  | 
fields  | 
array[string]  | 
query  | 
False  | 
Specify the fields to return.  | 
max_records  | 
integer  | 
query  | 
False  | 
Limit the number of records returned.  | 
return_records  | 
boolean  | 
query  | 
False  | 
The default is true for GET calls. When set to false, only the number of records is returned. 
  | 
return_timeout  | 
integer  | 
query  | 
False  | 
The number of seconds to allow the call to execute before returning. When iterating over a collection, the default is 15 seconds. ONTAP returns earlier if either max records or the end of the collection is reached. 
  | 
order_by  | 
array[string]  | 
query  | 
False  | 
Order results by specified fields and optional [asc  | 
Response
Status: 200, Ok
| Name | Type | Description | 
|---|---|---|
_links  | 
||
num_records  | 
integer  | 
The number of records in the response.  | 
records  | 
array[nvme_subsystem]  | 
Example response
{
  "_links": {
    "next": {
      "href": "/api/resourcelink"
    },
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "num_records": 1,
  "records": [
    {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "comment": "string",
      "hosts": [
        {
          "nqn": "nqn.1992-01.example.com:string"
        }
      ],
      "io_queue": {
        "default": {
          "count": 4,
          "depth": 16
        }
      },
      "name": "subsystem1",
      "os_type": "string",
      "serial_number": "wCVsgFMiuMhVAAAAAAAB",
      "subsystem_maps": [
        {
          "_links": {
            "self": {
              "href": "/api/resourcelink"
            }
          },
          "anagrpid": "00103050h",
          "namespace": {
            "_links": {
              "self": {
                "href": "/api/resourcelink"
              }
            },
            "name": "/vol/vol1/namespace1",
            "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
          },
          "nsid": "00000001h"
        }
      ],
      "svm": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "name": "svm1",
        "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
      },
      "target_nqn": "nqn.1992-01.example.com:string",
      "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412",
      "vendor_uuids": [
        "1447f0f4-42e5-0dfc-871a-dc9b3f92d8f8"
      ]
    }
  ]
}
Error
Status: Default, Error
| Name | Type | Description | 
|---|---|---|
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 | 
|---|---|---|
next  | 
||
self  | 
_links
| Name | Type | Description | 
|---|---|---|
self  | 
hosts
| Name | Type | Description | 
|---|---|---|
nqn  | 
string  | 
The NVMe qualified name (NQN) used to identify the NVMe storage target.  | 
default
The default I/O queue parameters inherited by NVMe hosts in the NVMe subsystem.
| Name | Type | Description | 
|---|---|---|
count  | 
integer  | 
The number of host I/O queue pairs.  | 
depth  | 
integer  | 
The host I/O queue depth.  | 
io_queue
The properties of the submission queue used to submit I/O commands for execution by the NVMe controller.
| Name | Type | Description | 
|---|---|---|
default  | 
The default I/O queue parameters inherited by NVMe hosts in the NVMe subsystem.  | 
namespace
An NVMe namespace mapped to the NVMe subsystem.
| Name | Type | Description | 
|---|---|---|
_links  | 
||
name  | 
string  | 
The name of the NVMe namespace.  | 
uuid  | 
string  | 
The unique identifier of the NVMe namespace.  | 
subsystem_maps
An NVMe namespace mapped to the NVMe subsystem.
| Name | Type | Description | 
|---|---|---|
_links  | 
||
anagrpid  | 
string  | 
The Asymmetric Namespace Access Group ID (ANAGRPID) of the NVMe namespace. The format for an ANAGRPIP is 8 hexadecimal digits (zero-filled) followed by a lower case "h".  | 
namespace  | 
An NVMe namespace mapped to the NVMe subsystem.  | 
|
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".  | 
svm
| Name | Type | Description | 
|---|---|---|
_links  | 
||
name  | 
string  | 
The name of the SVM.  | 
uuid  | 
string  | 
The unique identifier of the SVM.  | 
nvme_subsystem
An NVMe subsystem maintains configuration state and namespace access control for a set of NVMe-connected hosts.
| Name | Type | Description | 
|---|---|---|
_links  | 
||
comment  | 
string  | 
A configurable comment for the NVMe subsystem. Optional in POST and PATCH.  | 
delete_on_unmap  | 
boolean  | 
An option that causes the subsystem to be deleted when the last subsystem map associated with it is deleted. This property defaults to false when the subsystem is created.  | 
hosts  | 
array[hosts]  | 
The NVMe hosts configured for access to the NVMe subsystem. Optional in POST.  | 
io_queue  | 
The properties of the submission queue used to submit I/O commands for execution by the NVMe controller.  | 
|
name  | 
string  | 
The name of the NVMe subsystem. Once created, an NVMe subsystem cannot be renamed. Required in POST.  | 
os_type  | 
string  | 
The host operating system of the NVMe subsystem's hosts. Required in POST.  | 
serial_number  | 
string  | 
The serial number of the NVMe subsystem.  | 
subsystem_maps  | 
array[subsystem_maps]  | 
The NVMe namespaces mapped to the NVMe subsystem. There is an added cost to retrieving property values for   | 
svm  | 
||
target_nqn  | 
string  | 
The NVMe qualified name (NQN) used to identify the NVMe storage target.  | 
uuid  | 
string  | 
The unique identifier of the NVMe subsystem.  | 
vendor_uuids  | 
array[string]  | 
Vendor-specific identifiers (UUIDs) optionally assigned to an NVMe subsystem when the subsystem is created. The identifiers are used to enable vendor-specific NVMe protocol features. The identifiers are provided by a host application vendor and shared with NetApp prior to a joint product release. Creating an NVMe subsystem with an unknown or non-specific identifier will have no effect on the NVMe subsystem. Refer to the ONTAP SAN Administration Guide for a list of the supported vendor-specific identifiers. After a subsystem is created, the vendor-specific identifiers cannot be changed or removed. Optional in POST. 
  | 
error_arguments
| Name | Type | Description | 
|---|---|---|
code  | 
string  | 
Argument code  | 
message  | 
string  | 
Message argument  | 
error
| Name | Type | Description | 
|---|---|---|
arguments  | 
array[error_arguments]  | 
Message arguments  | 
code  | 
string  | 
Error code  | 
message  | 
string  | 
Error message  | 
target  | 
string  | 
The target parameter that caused the error.  |