95 lines
3.0 KiB
Groff
95 lines
3.0 KiB
Groff
.\" $NetBSD: ataraid.4,v 1.14 2008/09/16 11:45:30 tron Exp $
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.\"
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.\" Copyright (c) 2005 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Allen K. Briggs.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd September 16, 2008
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.Dt ATARAID 4
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.Os
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.Sh NAME
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.Nm ataraid
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.Nd software BIOS RAID
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.Sh SYNOPSIS
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.Cd "pseudo-device ataraid"
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.Cd "ld* at ataraid? vendtype ? unit ?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for BIOS-based software RAID controllers.
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These are devices which have some simple support for several basic
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RAID levels (often RAID 0 and RAID 1), but which require software
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support to actually perform the RAID function.
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The BIOS support is largely just to create and recognize the array
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so that it may be a boot device.
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.Pp
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The driver currently supports RAID formats from:
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.Bl -bullet -offset indent -compact
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.It
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Adaptec HostRAID (found in Intel 6300ESB)
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.It
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Intel MatrixRAID
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.It
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JMicron RAID
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.It
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nVidia MediaShield
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.It
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Promise FastTrak
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.It
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Via V-RAID (found in many VIA-based motherboards)
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.El
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.Pp
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Status of the logical disk as well as the disks associated with it,
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can be viewed through the
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.Xr bioctl 8
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utility.
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.Sh SEE ALSO
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.Xr ld 4 ,
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.Xr bioctl 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Nx 2.0 .
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.Sh AUTHORS
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The
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.Nm
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driver was originally adapted from
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.Fx
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by
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.An Jason Thorpe
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.Aq thorpej@NetBSD.org .
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.Sh BUGS
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Not all features of the software RAID are currently recognized or
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supported.
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For example, the Adaptec support doesn't recognize when a RAID 1
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should be in a
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.Dq building
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state, and it does not do the right thing.
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.Pp
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At least part of the reason for this is that the publically-available
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information on these formats is quite limited.
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