# Volumes

For persistent storage, you can define volumes. The volumes are the persistent storage for your application. You can define as many volumes as you want. To create a new volume you can click the **New Volume** button.

<figure><img src="/files/7EUkRrYSDUzISpZJCHmw" alt=""><figcaption><p>new volume</p></figcaption></figure>

You can define the following options:

* name: the name of the volume, must be unique in the **deployment**
* mount path: the mount path of the volume (e.g. /data, /var/lib/mysql)
* size: the size of the volume in **GiB** (gibibyte)
* storage class: the storage class of the volume (the dropdown will show you the available storage classes inside the Kubernetes cluster)

<figure><img src="/files/BmuzKWcMGSZ2m89AU8BF" alt=""><figcaption><p>volume overview</p></figcaption></figure>

{% hint style="info" %}
You cannot change the size or storage class of a volume after creation. If you need to change the size or storage class you need to create a new volume and migrate the data.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.one-click.dev/platform/volumes.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.