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

# Fly Volumes

Fly Volumes are local persistent storage for [Fly Machines](/machines). A Fly Volume is a slice of an NVMe drive on the same physical server as the Machine on which it's mounted.

* **[Fly Volumes overview](/volumes/overview):** Learn how volumes work and whether they're right for your use case.

* **[Fly Launch apps - Add volume storage](/launch/volume-storage):** Launch an app with volumes or add volume storage to an existing app.

* **[Create and manage volumes with flyctl](/volumes/volume-manage):** Create, extend, copy, destroy, and restore volumes.

* **[Manage volume snapshots](/volumes/snapshots):** We back up your data with volume snapshots. Create a volume snapshot on-demand, change the retention time for automatic snapshots, and restore data from a snapshot.

## Volume references

* [Volume states](/volumes/volume-states)

* [flyctl commands - `fly volumes`](/flyctl/cmd/fly_volumes)

* [Machines API - Volumes](/machines/api/volumes-resource)