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Updated May 8, 2026 Volumes are NVMe SSD block storage you attach to a Raff VM as additional disk capacity. Use them when a VM needs more storage than its plan includes, or — more importantly — when you want data to outlive the VM itself. Volumes survive VM destroy, attach to a different VM, and bill independently.
Storage Volumes list in the Raff dashboard showing an attached volume "test" mapped to the Finance VM with a Provisioning badge

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At a glance

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When to use a volume

If you’re hesitating between volumes and Object Storage: volumes are block devices (a single VM mounts them like a disk); Object Storage is HTTP-accessible (many clients can read/write at once, scales beyond 1 TB, served over a URL).

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How volumes fit in the storage stack

A Raff VM has up to five storage objects in its orbit. Volumes are one of them: See Storage model for the full survival matrix and decision flowchart across every lifecycle event.

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Most viewed

Create a volume

Pick size, billing term, target VM, and how it should be formatted.

Attach to a VM

Dashboard attach + format and mount inside the VM.

Resize a volume

Grow capacity, then expand the filesystem inside the guest.

Detach from a VM

Free a volume cleanly so you can reattach it elsewhere.

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Browse

Quickstart & guides

Create, attach, resize, detach, delete.

Concepts

Persistence model and single-attach scope.

Details

Features, limits, pricing.

Troubleshooting

Common volume issues — attach, mount, resize, detach.

API Reference

Volume endpoints.

Changelog

All API updates and changes.
Last modified on May 11, 2026