---
name: "arc"
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/arc/4"
---

# arc(4)

Areca Technology Corporation SAS/SATA RAID controller

## NAME

**arc** – Areca Technology Corporation SAS/SATA RAID controller

## SYNOPSIS

**arc\* at pci?**

## DESCRIPTION

The **arc** driver provides support for the PCI-X and PCI Express RAID controllers from Areca Technology Corporation:

- ARC-1110 PCI-X 4 Port SATA RAID Controller

- ARC-1110ML PCI-X 4 Port SATA RAID Controller

- ARC-1120 PCI-X 8 Port SATA RAID Controller

- ARC-1120ML PCI-X 8 Port SATA RAID Controller

- ARC-1130 PCI-X 12 Port SATA RAID Controller

- ARC-1130ML PCI-X 12 Port SATA RAID Controller

- ARC-1160 PCI-X 16 Port SATA RAID Controller

- ARC-1160ML PCI-X 16 Port SATA RAID Controller

- ARC-1170 PCI-X 24 Port SATA RAID Controller

- ARC-1200 Rev A PCI Express 2 Port SATA RAID Controller

- ARC-1202 PCI Express 2 Port SATA RAID Controller

- ARC-1210 PCI Express 4 Port SATA RAID Controller

- ARC-1212 PCI Express 4 Port SATA RAID Controller

- ARC-1213 PCI Express 4 Port SATA RAID Controller

- ARC-1214 PCI Express 4 Port SATA RAID Controller

- ARC-1220 PCI Express 8 Port SATA RAID Controller

- ARC-1222 PCI Express 8 Port SATA RAID Controller

- ARC-1223 PCI Express 8 Port SATA RAID Controller

- ARC-1224 PCI Express 8 Port SATA RAID Controller

- ARC-1230 PCI Express 12 Port SATA RAID Controller

- ARC-1230ML PCI Express 12 Port SATA RAID Controller

- ARC-1231ML PCI Express 12 Port SATA RAID Controller

- ARC-1260 PCI Express 16 Port SATA RAID Controller

- ARC-1260ML PCI Express 16 Port SATA RAID Controller

- ARC-1261ML PCI Express 16 Port SATA RAID Controller

- ARC-1264il-12 PCI Express 12 Port SATA RAID Controller

- ARC-1264il-16 PCI Express 16 Port SATA RAID Controller

- ARC-1280 PCI Express 24 Port SATA RAID Controller

- ARC-1280ML PCI Express 24 Port SATA RAID Controller

- ARC-1284ML-24 PCI Express 24 Port SATA RAID Controller

- ARC-1680 PCI Express 8 Port SAS RAID Controller

- ARC-1680LP PCI Express 8 Port SAS RAID Controller

- ARC-1680i PCI Express 8 Port SAS RAID Controller

- ARC-1680x PCI Express 8 Port SAS RAID Controller

- ARC-1681 PCI-X 8 Port SAS RAID Controller

- ARC-1880ixl-8 PCI Express 12 Port SAS RAID Controller

- ARC-1880ixl-12 PCI Express 16 Port SAS RAID Controller

- ARC-1882i PCI Express 8 Port SAS RAID Controller

- ARC-1882x PCI Express 8 Port SAS RAID Controller

- ARC-1882LP PCI Express 8 Port SAS RAID Controller

- ARC-1882ix-12 PCI Express 16 Port SAS RAID Controller

- ARC-1882ix-16 PCI Express 20 Port SAS RAID Controller

- ARC-1882ix-24 PCI Express 28 Port SAS RAID Controller

- ARC-1883X PCI Express 16 Port SAS RAID Controller

These controllers can support RAID levels 0, 1, 1E, 3, 5, 6, and JBOD.

**arc** supports alarm control and monitoring of volumes configured on the controllers via the [bio(4)](/bio/4.md) interface and the [bioctl(8)](/bioctl/8.md) utility.

## SEE ALSO

[bio(4)](/bio/4.md), [intro(4)](/intro/4.md), [pci(4)](/pci/4.md), [scsi(4)](/scsi/4.md), [bioctl(8)](/bioctl/8.md)

## HISTORY

The **arc** driver first appeared in OpenBSD 4.0.

## AUTHORS

The **arc** driver was written by David Gwynne ⟨*dlg@openbsd.org*⟩.