---
name: "arcmsr"
section: "4freebsd"
platform: "linux"
package: "freebsd-manpages"
version: "12.2-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/arcmsr/4freebsd"
---

# arcmsr(4freebsd)

Areca RAID Controller driver

## NAME

**arcmsr** – Areca RAID Controller driver

## SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file:

**device pci** **device scbus** **device da** **device arcmsr**

Alternatively, to load the driver as a module at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
arcmsr_load="YES"
```

## DESCRIPTION

The **arcmsr** driver provides support for the Areca ARC-11xx, ARC-12xx, ARC-13xx, ARC-16xx and ARC-18xx series of SAS and SATA RAID controllers. These controllers feature RAID-0, 1, 3, 5, 6, and 10 and JBOD acceleration for up to 16 SATA drives. RAID level and stripe level migration, online capacity expansion, hot insertion/removal, automatic failover and rebuild, and SMART are also supported. Access to the arrays is provided via the SCSI CAM */dev/da?* device nodes. A management interface is also present via the */dev/arcmsr?* device node. Management tools for i386 and amd64 are available from Areca.

## HARDWARE

The **arcmsr** driver supports the following cards:

- ARC-1110

- ARC-1120

- ARC-1130

- ARC-1160

- ARC-1170

- ARC-1110ML

- ARC-1120ML

- ARC-1130ML

- ARC-1160ML

- ARC-1200

- ARC-1201

- ARC-1203

- ARC-1210

- ARC-1212

- ARC-1213

- ARC-1214

- ARC-1216

- ARC-1220

- ARC-1222

- ARC-1223

- ARC-1224

- ARC-1226

- ARC-1230

- ARC-1231

- ARC-1260

- ARC-1261

- ARC-1270

- ARC-1280

- ARC-1210ML

- ARC-1220ML

- ARC-1231ML

- ARC-1261ML

- ARC-1280ML

- ARC-1380

- ARC-1381

- ARC-1680

- ARC-1681

- ARC-1880

- ARC-1882

- ARC-1883

- ARC-1884

## FILES

- */dev/da?*

  Array block device

- */dev/arcmsr?*

  Management interface

## SEE ALSO

[da(4)](/da/4.md), [scbus(4)](/scbus/4.md)

## HISTORY

The **arcmsr** driver first appeared in FreeBSD 5.4.

## AUTHORS

The driver was written by Erich Chen ⟨*erich@areca.com.tw*⟩.

## BUGS

The driver has been tested on i386 and amd64. It likely requires additional work to function on big-endian architectures.