---
title: "NAS metrics"
slug: "nas-metric-classic"
updated: 2026-09-17T10:12:27Z
published: 2026-09-17T10:12:27Z
canonical: "api.ncloud-docs.com/nas-metric-classic"
---

> ## 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.

# NAS metrics

Available in Classic

This section provides information on the performance and operational metrics of the NAS service. Performance/operational metrics can be managed in an integrated manner through NAVER Cloud Platform's Cloud Insight service and can be used for various monitoring purposes.

              Note

              

See the [Cloud Insight API Guide](/docs/en/management-cloudinsight) for information on how to use performance/operational metrics for monitoring.

## Basic information

The following is the basic information of the NAS service for using performance/operational metrics.

- Product name (`prodName`)
  - System/NAS
- Product key (`cw_key`)
  - 665288795423379456

## Performance/operation metrics

The performance/operational metrics of the NAS service are as follows.

- Metric

| Metric name | Data type | Unit | Metric type | Description | Interval | Aggregation |
| --- | --- | --- | --- | --- | --- | --- |
|  | volume_size | LONG | bytes | Basic, Default | Volume Size | Min1,Min5,Min30,Hour2,Day1 |
|  | volume_used_size | LONG | bytes | Basic, Default | Volume Used Size | Min1,Min5,Min30,Hour2,Day1 |
|  | volume_used_ratio | FLOAT | % | Basic, Default | Volume Used Ratio | Min1,Min5,Min30,Hour2,Day1 |
|  | snapshot_volume_size | LONG | bytes | Basic, Default | Snapshot Volume Size | Min1,Min5,Min30,Hour2,Day1 |
|  | snapshot_volume_used_size | LONG | bytes | Basic, Default | Snapshot Volume Used Size | Min1,Min5,Min30,Hour2,Day1 |
|  | snapshot_volume_used_ratio | FLOAT | % | Basic, Default | Snapshot Volume Used Ratio | Min1,Min5,Min30,Hour2,Day1 |
- Dimension

| Dimension name | Data type |
| --- | --- |
|  | instanceNo |