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REST API reference

Retrieve historical performance metrics for a qtree with extended performance monitoring enabled

PDFs

GET /storage/qtrees/{volume.uuid}/{qtree.id}/metrics

Introduced In: 9.16

Retrieves historical performance metrics for a qtree which has extended performance monitoring enabled.

Parameters

Name Type In Required Description

latency.write

integer

query

False

Filter by latency.write

latency.total

integer

query

False

Filter by latency.total

latency.read

integer

query

False

Filter by latency.read

latency.other

integer

query

False

Filter by latency.other

svm.name

string

query

False

Filter by svm.name

svm.uuid

string

query

False

Filter by svm.uuid

duration

string

query

False

Filter by duration

volume.name

string

query

False

Filter by volume.name

throughput.write

integer

query

False

Filter by throughput.write

throughput.total

integer

query

False

Filter by throughput.total

throughput.read

integer

query

False

Filter by throughput.read

throughput.other

integer

query

False

Filter by throughput.other

qtree.name

string

query

False

Filter by qtree.name

status

string

query

False

Filter by status

iops.write

integer

query

False

Filter by iops.write

iops.total

integer

query

False

Filter by iops.total

iops.read

integer

query

False

Filter by iops.read

iops.other

integer

query

False

Filter by iops.other

timestamp

string

query

False

Filter by timestamp

volume.uuid

string

path

True

Volume UUID

qtree.id

string

path

True

Qtree ID

interval

string

query

False

The time range for the data. Examples can be 1d, 1m, 1w, 1y. The period for each time range is as follows:

  • 1d: Metrics over the most recent day sampled over 5 minutes.

  • 1w: Metrics over the most recent week sampled over 30 minutes.

  • 1m: Metrics over the most recent month sampled over 2 hours.

  • 1y: Metrics over the most recent year sampled over a day.

  • Default value: 1

  • enum: ["1d", "1w", "1m", "1y"]

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.

  • Default value: 1

  • Max value: 120

  • Min value: 0

fields

array[string]

query

False

Specify the fields to return.

max_records

integer

query

False

Limit the number of records returned.

order_by

array[string]

query

False

Order results by specified fields and optional [asc

desc] direction. Default direction is 'asc' for ascending.

return_records

boolean

query

False

Response

Status: 200, Ok
Name Type Description

_links

_links

num_records

integer

Number of records

records

array[records]
Example response 
{
  "_links": {
    "next": {
      "href": "/api/resourcelink"
    },
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "num_records": 1,
  "records": [
    {
      "_links": {
        "self": {
          "href": "/api/resourcelink"
        }
      },
      "duration": "PT5M",
      "iops": {
        "read": 200,
        "total": 1000,
        "write": 100
      },
      "latency": {
        "read": 200,
        "total": 1000,
        "write": 100
      },
      "qtree": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "id": 1,
        "name": "qt1"
      },
      "status": "ok",
      "svm": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "name": "svm1",
        "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
      },
      "throughput": {
        "read": 200,
        "total": 1000,
        "write": 100
      },
      "timestamp": "2017-01-25 06:20:13 -0500",
      "volume": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "name": "volume1",
        "uuid": "028baa66-41bd-11e9-81d5-00a0986138f7"
      }
    }
  ]
}

Error

Status: Default

ONTAP Error Response Codes

Error Code Description

918235

A volume with UUID was not found.

2621462

The specified SVM does not exist.

5242956

Failed to obtain a qtree with ID.

5242986

Extended performance monitoring is not enabled on the qtree.

8586227

Interval not supported for this object.

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

next

href

self

href

_links

Name Type Description

self

href

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.

qtree

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.

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.

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.

volume

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

records

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.

qtree

qtree

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.

svm

svm

SVM, applies only to SVM-scoped objects.

throughput

throughput

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

timestamp

string

The timestamp of the performance data.

volume

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.