> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/api-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/api-reference/compute/zec/disk/detachdisks.md).

# DetachDisks

## 1. API Description

This API (DetachDisks) is used to detach one or more disks from an instance.

{% hint style="info" %}
**Notes**

* A maximum of 10 disks can be detached in a single request.
* If a disk is already detached, the target state is considered achieved and it is simply skipped.
* If a disk does not meet the detach conditions (disk type is not `DATA`, `portable` is not `true`, status is not `IN_USE`, or when `instanceCheckFlag` is `true` the attached instance is not powered off, etc.), only that disk will fail to detach — its ID will appear in the response's `failedDiskIds`, without affecting the detachment of the other disks.
* Disk IDs in the request that do not exist are silently ignored; they will not cause the request to fail, nor will they appear in `failedDiskIds`.
  {% endhint %}

## 2. Input Parameters

The following request parameter list only provides API request parameters.

| Parameter Name    | Required | Type            | Description                                                                                                                                              |
| ----------------- | -------- | --------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| diskIds           | Yes      | Array of String | ID list of disks to be detached.                                                                                                                         |
| instanceCheckFlag | No       | Boolean         | <p>Check instance running status.</p><p>Default value: true , meaning disk detach allowed only when instance is shut down.</p><p>Default value: true</p> |

## 3. Output Parameters

| Parameter Name | Type            | Description                                                                                                           |
| -------------- | --------------- | --------------------------------------------------------------------------------------------------------------------- |
| requestId      | String          | <p>The unique request ID, which is returned for each request.</p><p>RequestId is required for locating a problem.</p> |
| failedDiskIds  | Array of String | Disks failed to be detached.                                                                                          |

## 4. Code Example

{% tabs %}
{% tab title="Example" %}
**Detach one or more disks from an instance.**

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

Request:
{
  "diskIds": [
    "your-disk-id"
  ]
}

Response:
{
  "requestId": "T86A56634-582A-4615-BBE2-ABFE192EE7CE",
  "response": {
    "requestId": "T86A56634-582A-4615-BBE2-ABFE192EE7CE",
    "failedDiskIds": []
  }
}
```

{% endtab %}
{% endtabs %}

## 5. Developer Resources

Zenlayer Cloud API 2.0 integrates [SDKs](/api-reference/api-introduction/toolkit/api-sdk.md)，to make it easier for you to call APIs. More programming languages will be supported.

## 6. Error Codes

The following only lists the error codes related to the API business logic. For other error codes, see [Common Error Codes](/api-reference/api-introduction/instruction/commonerrorcode.md).

| HTTP Status Code | Error Code | Description |
| ---------------- | ---------- | ----------- |