---
title: "getNasVolumeInstanceRatingList"
slug: "storage-vnas-volume-getnasvolumeinstanceratinglist"
tags: ["NAS", "Volume"]
updated: 2026-09-17T10:12:27Z
published: 2026-09-17T10:12:27Z
canonical: "api.ncloud-docs.com/storage-vnas-volume-getnasvolumeinstanceratinglist"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# getNasVolumeInstanceRatingList

Available in VPC

Get the size of a NAS volume instance over a specific time period based on the set measurement interval.

Note

getNasVolumeInstanceRatingList is only available in the Korea (KR) Region. To view the NAS volume instance measurement list in other Regions, see [Cloud Insight API](/docs/en/management-cloudinsight-querydata).

## Request

This section describes the request format. The method and URI are as follows:

| Method | URI |
| --- | --- |
| GET \| POST | /vnas/v2/getNasVolumeInstanceRatingList |

Note

This guide is based on the GET method. POST method call tests can be performed through Swagger in the API Gateway service of the NAVER Cloud Platform console.

### Request headers

For information about the headers common to all NAS APIs, see [Common NAS headers](/docs/en/storage-vnas#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

### Request query parameters

You can use the following query parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `regionCode` | String | Optional | Region code of the NAS volume instance for which you want to view volume instance size - See [getRegionList](/docs/en/compute-vserver-server-common-getregionlist) (default: `KR`) |
| `nasVolumeInstanceNo` | String | Required | NAS volume instance number for which you want to view volume instance size - See [getNasVolumeInstanceList](/docs/en/storage-vnas-volume-getnasvolumeinstancelist) |
| `startTime` | String | Required | Measurement start date and time - yyyy-MM-dd'T'HH:mm:ssZ format - <e.g.> 2024-04-01'T'00:00:00+0900 - URL encoding is required when using the GET method |
| `endTime` | String | Required | Measurement end date and time - yyyy-MM-dd'T'HH:mm:ssZ format - <e.g.> 2024-04-01'T'23:59:59+0900 - URL encoding is required when using the GET method |
| `interval` | String | Required | Measurement interval - `5m` \| `6h` \| `1d` \| `1M` - `5m`: 5 minutes - `6h`: 6 hours - `1d`: 1 day - `1M`: 1 month - Limit maximum lookup duration (`startTime` - `endTime`) based on measurement interval - `5m`: up to 3 days - `6h`: up to 1 month - `1d`: up to 2 years - `1M`: up to 5 years |
| `responseFormatType` | String | Optional | Response result format type - `xml` (default) \| `json` |

### Request example

The request example is as follows:

```
curl --location 'https://ncloud.apigw.ntruss.com/vnas/v2/getNasVolumeInstanceRatingList
?regionCode=KR
&nasVolumeInstanceNo=23490000
&startTime=2024-04-08T00%3A00%3A00%2B0000
&endTime=2024-04-08T10%3A00%3A00%2B0000
&interval=5m
&responseFormatType=json' \ \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Sub Account Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}'
```

## Response

This section describes the response format.

### Response body

See [NasVolumeInstanceRatingList](/docs/en/common-vapidatatype-nasvolumeinstanceratinglist#%ED%95%84%EB%93%9C) for the response body.

### Response status codes

For information about the HTTP status codes common to all NAS (VPC) APIs, see [NAS (VPC) response status codes](/docs/en/storage-vnas#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).

### Response example

The response example is as follows:

```
{
    "getNasVolumeInstanceRatingListResponse": {
        "totalRows": 1,
        "nasVolumeInstanceRatingList": [
            {
                "ratingTime": "20240407",
                "averageVolumeSize": 536870912000,
                "averageVolumeUseSize": 380928,
                "averageVolumeUseRatio": 0.0,
                "maxVolumeUseSize": 380928,
                "maxVolumeUseRatio": 0.0,
                "minVolumeUseSize": 380928,
                "minVolumeUseRatio": 0.0,
                "snapshotAverageVolumeSize": 0,
                "snapshotAverageVolumeUseSize": 0,
                "snapshotMaxVolumeUseSize": 0,
                "snapshotMaxVolumeUseRatio": 0.0,
                "snapshotMinVolumeUseSize": 0,
                "snapshotMinVolumeUseRatio": 0.0
            }
        ],
        "requestId": "0000bdf-ceaa-4f9f-b6a6-da1352110000",
        "returnCode": "0",
        "returnMessage": "success"
    }
}
```

When the interval is 5M, it looks like this:

```
{
    "getNasVolumeInstanceRatingListResponse": {
        "totalRows": 1,
        "nasVolumeInstanceRatingList": [
            {
                "ratingTime": "20240407",
                "volumeSize": 536870912000,
                "volumeUseSize": 380928,
                "volumeUseRatio": 0.0,
                "snapshotVolumeSize": 0,
                "snapshotVolumeUseSize": 0,
                "snapshotVolumeUseRatio": 0.0,
            }
        ],
        "requestId": "0000bdf-ceaa-4f9f-b6a6-da1352110000",
        "returnCode": "0",
        "returnMessage": "success"
    }
}
```