# DescribeDiskCategory

## 1. 接口描述

本接口(DescribeDiskCategory)用于查询指定可用区支持的云硬盘类型列表，可按云盘类别进行过滤，用于创建云盘前的参数确认。

## 2. 请求参数

以下请求参数列表仅列出了接口中需要的请求参数

| 参数名称         | 必选 | 类型     | 描述                                                                                                                       |
| ------------ | -- | ------ | ------------------------------------------------------------------------------------------------------------------------ |
| zoneId       | 否  | String | 根据可用区ID筛选。                                                                                                               |
| diskCategory | 否  | String | <p>根据云硬盘种类筛选。</p><p>Basic NVMe SSD: 经济型 NVMe SSD。</p><p>Standard NVMe SSD: 标准型 NVMe SSD。</p><p>默认为Standard NVMe SSD。</p> |

## 3. 响应结果

| 参数名称            | 类型                                                                                                           | 描述                                                       |
| --------------- | ------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------- |
| requestId       | String                                                                                                       | <p>唯一请求 ID。</p><p>每次请求都会返回。定位问题时需要提供该次请求的 requestId。</p> |
| categoryZoneSet | Array of [DescribeDiskCategoryItem](/api-reference/cn/compute/zec/datastructure.md#describediskcategoryitem) | 可用区支持的云盘类型。                                              |

## 4. 代码示例

{% tabs %}
{% tab title="示例" %}
**1. 查询区域云硬盘支持的类型。**

```json
POST /api/v2/zec HTTP/1.1
Host: console.zenlayer.com
Content-Type: application/json
X-ZC-Action: DescribeDiskCategory
<Common Request Params>

Request：
{
  "zoneId": "europe-central-1a"
}

Response:
{
  "requestId": "TCF499941-588A-4F28-B8ED-1BAC37E304DC",
  "response": {
    "requestId": "TCF499941-588A-4F28-B8ED-1BAC37E304DC",
    "categoryZoneSet": [
      {
        "zoneId": "europe-central-1a",
        "categorySet": [
          "Basic NVMe SSD"
        ]
      }
    ]
  }
}
```

{% endtab %}
{% endtabs %}

## 5. 开发者工具

Zenlayer Cloud API 2.0 提供了配套的[开发工具集（SDK）](/api-reference/cn/api-introduction/toolkit.md)，未来会陆续支持更多开发语言，方便快速接入和使用Zenlayer的产品和服务。

## 6. 错误码

下面包含业务逻辑中遇到的错误码，其他错误码见[公共错误码](/api-reference/cn/api-introduction/instruction/commonerrorcode.md)

| HTTP状态码 | 错误码                       | 说明      |
| ------- | ------------------------- | ------- |
| 404     | INVALID\_ZONE\_NOT\_FOUND | 可用区不存在。 |


---

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```
GET https://docs.console.zenlayer.com/api-reference/cn/compute/zec/disk/describediskcategory.md?ask=<question>
```

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