---
name: "vdsk"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/vdsk"
---

# vdsk(4)

virtual disk

## NAME

**vdsk** – virtual disk

## SYNOPSIS

**vdsk\* at cbus?**

## DESCRIPTION

The **vdsk** driver provides a virtual disk using the services provided by the UltraSPARC Hypervisor as found on sun4v systems. It connects to a virtual disk server (vds) device in another logical domain using a logical domain channel provided by the hypervisor.

The **vdsk** driver supports version 1.0 of the vDisk protocol.

## SEE ALSO

[cbus(4)](/cbus/4.md), [intro(4)](/intro/4.md), [scsi(4)](/scsi/4.md)

## HISTORY

The **vdsk** driver first appeared in OpenBSD 4.5.

## AUTHORS

The **vdsk** driver was written by Mark Kettenis ⟨*kettenis@openbsd.org*⟩.