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NAME
     arcmsr -- Areca SATA II 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):

           arcmsr_load="YES"


DESCRIPTION
     The arcmsr driver provides support for the Areca ARC-11xx and ARC-12xx
     series of SATA II 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:

     +o   ARC-1110
     +o   ARC-1120
     +o   ARC-1130
     +o   ARC-1160
     +o   ARC-1170
     +o   ARC-1180
     +o   ARC-1110ML
     +o   ARC-1120ML
     +o   ARC-1130ML
     +o   ARC-1160ML
     +o   ARC-1210
     +o   ARC-1220
     +o   ARC-1230
     +o   ARC-1260
     +o   ARC-1280
     +o   ARC-1210ML
     +o   ARC-1220ML
     +o   ARC-1231ML
     +o   ARC-1261ML
     +o   ARC-1280ML


FILES
     /dev/da?      Array block device
     /dev/arcmsr?  Management interface


SEE ALSO
     da(4), scbus(4)


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.