.\" Copyright (c) 2005 Scott Long
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.\" $FreeBSD$
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.Dd December 18, 2012
.Dt ARCMSR 4
.Os
.Sh NAME
.Nm arcmsr
.Nd Areca RAID Controller driver
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device pci"
.Cd "device scbus"
.Cd "device da"
.Cd "device arcmsr"
.Ed
.Pp
Alternatively, to load the driver as a
module at boot time, place the following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
arcmsr_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
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
.Pa /dev/da?
device nodes.
A management interface is also present via the
.Pa /dev/arcmsr?
device node.
Management tools for i386 and amd64 are available from Areca.
.Sh HARDWARE
The
.Nm
driver supports the following cards:
.Pp
.Bl -bullet -compact
.It
ARC-1110
.It
ARC-1120
.It
ARC-1130
.It
ARC-1160
.It
ARC-1170
.It
ARC-1110ML
.It
ARC-1120ML
.It
ARC-1130ML
.It
ARC-1160ML
.It
ARC-1200
.It
ARC-1201
.It
ARC-1210
.It
ARC-1212
.It
ARC-1213
.It
ARC-1214
.It
ARC-1220
.It
ARC-1222
.It
ARC-1223
.It
ARC-1230
.It
ARC-1231
.It
ARC-1260
.It
ARC-1261
.It
ARC-1270
.It
ARC-1280
.It
ARC-1210ML
.It
ARC-1220ML
.It
ARC-1231ML
.It
ARC-1261ML
.It
ARC-1280ML
.It
ARC-1380
.It
ARC-1381
.It
ARC-1680
.It
ARC-1681
.It
ARC-1880
.It
ARC-1882
.El
.Sh FILES
.Bl -tag -width ".Pa /dev/arcmsr?" -compact
.It Pa /dev/da?
Array block device
.It Pa /dev/arcmsr?
Management interface
.El
.Sh SEE ALSO
.Xr da 4 ,
.Xr scbus 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 5.4 .
.Sh AUTHORS
The driver was written by
.An Erich Chen Aq erich@areca.com.tw .
.Sh BUGS
The driver has been tested on i386 and amd64.
It likely requires additional
work to function on big-endian architectures.