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.\"	$OpenBSD: mfii.4,v 1.8 2024/02/05 19:07:45 deraadt Exp $
.\"
.\" Copyright (c) 2012 David Gwynne <dlg@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: February 5 2024 $
.Dt MFII 4
.Os
.Sh NAME
.Nm mfii
.Nd LSI Logic MegaRAID SAS Fusion RAID controller
.Sh SYNOPSIS
.Cd "mfii* at pci?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the MegaRAID SAS Fusion family of RAID controllers
using the following chipsets:
.Pp
.Bl -dash -offset indent -compact
.It
SAS2208
.It
SAS3008
.It
SAS3108
.It
SAS3404
.It
SAS3408
.It
SAS3416
.It
SAS3504
.It
SAS3508
.It
SAS3516
.It
SAS3816
.It
SAS3916
.El
.Pp
These controllers support RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50 and
RAID 60 using either SAS or SATA II drives.
.Pp
Although the controllers are actual RAID controllers,
they appear as SCSI controllers.
All RAID configuration is done through the controllers' BIOSes.
.Sh SEE ALSO
.Xr bio 4 ,
.Xr intro 4 ,
.Xr pci 4 ,
.Xr scsi 4 ,
.Xr sd 4 ,
.Xr bioctl 8 ,
.Xr sensorsd 8 ,
.Xr sysctl 8
.Sh HISTORY
The
.Nm
driver first appeared in
.Ox 5.3 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An David Gwynne Aq Mt dlg@openbsd.org .