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

# Overview

Each sandbox has a completely isolated filesystem. Currently, we provide fixed 20 GB storage space for sandboxes.

Next, we will demonstrate how to operate the sandbox filesystem using the SDK, including:

* [Read & write files](/guides/sandbox-filesystem-read-write)
* [File & directory metadata](/guides/sandbox-filesystem-metadata)
* [Watch sandbox directory for changes](/guides/sandbox-filesystem-watch)
* [Upload data to sandbox](/guides/sandbox-filesystem-upload)
* [Download data from sandbox](/guides/sandbox-filesystem-download)
* [Mount object storage bucket](/guides/sandbox-mount-cloudstorage)