1.\" $NetBSD: ld.4,v 1.9 2002/04/26 02:26:46 wiz Exp $ 2.\" 3.\" Copyright (c) 2000 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Andrew Doran. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd April 26, 2002 38.Dt LD 4 39.Os 40.Sh NAME 41.Nm ld 42.Nd logical disk driver 43.Sh SYNOPSIS 44.Cd ld* at aac? unit ? 45.Cd ld* at cac? unit ? 46.Cd ld* at icp? unit ? 47.Cd ld* at iop? tid ? 48.Cd ld* at mlx? unit ? 49.Cd ld* at twe? unit ? 50.Sh DESCRIPTION 51The 52.Nm 53driver provides support for simple block devices, usually presented by a disk 54array controller. 55.Sh FILES 56.Bl -tag -width /dev/rcaXXXXX -compact 57.It Pa /dev/ld Ns Ar u Ns Ar p 58block mode disk unit 59.Ar u , 60partition 61.Ar p 62.It Pa /dev/rld Ns Ar u Ns Ar p 63raw mode disk unit 64.Ar u , 65partition 66.Ar p 67.Sm off 68.El 69.Sh SEE ALSO 70.Xr aac 4 , 71.Xr cac 4 , 72.Xr icp 4 , 73.Xr intro 4 , 74.Xr iop 4 , 75.Xr mlx 4 , 76.Xr twe 4 77.Sh HISTORY 78The 79.Nm 80driver first appeared in 81.Nx 1.5.3 . 82.Sh AUTHORS 83The 84.Nm 85driver was written by 86.An Andrew Doran 87.Aq ad@netbsd.org . 88.Sh BUGS 89This driver is in reality a kludge intended to reduce code size and 90maintenance overheads. 91.Pp 92The capacity and geometry of units as accessed through the 93.Nm 94driver may be different than when accessed through some other 95medium (e.g. 96.Tn SCSI ) . 97