1.\" $NetBSD: ld.4,v 1.6 2001/11/28 17:41:46 ad 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 September 1, 2000 38.Dt LD 4 39.Os 40.Sh NAME 41.Nm ld 42.Nd logical disk driver 43.Sh SYNOPSIS 44.Cd ld* at cac? unit ? 45.Cd ld* at iop? tid ? 46.Cd ld* at mlx? unit ? 47.Cd ld* at twe? unit ? 48.Sh DESCRIPTION 49The 50.Nm 51driver provides support for simple block devices, usually presented by a disk 52array controller. 53.Sh FILES 54.Bl -tag -width /dev/rcaXXXXX -compact 55.It Pa /dev/ld Ns Ar u Ns Ar p 56block mode disk unit 57.Ar u , 58partition 59.Ar p 60.It Pa /dev/rld Ns Ar u Ns Ar p 61raw mode disk unit 62.Ar u , 63partition 64.Ar p 65.Sm off 66.El 67.Sh SEE ALSO 68.Xr cac 4 , 69.Xr intro 4 , 70.Xr iop 4 , 71.Xr mlx 4 , 72.Xr twe 4 73.Sh HISTORY 74The 75.Nm 76driver first appeared in 77.Nx 1.5.3 . 78.Sh AUTHORS 79The 80.Nm 81driver was written by 82.An Andrew Doran 83.Aq ad@netbsd.org . 84.Sh BUGS 85This driver is in reality a kludge intended to reduce code size and 86maintenance overheads. 87.Pp 88The capacity and geometry of units as accessed through the 89.Nm 90driver may be different than when accessed through some other 91medium (e.g. 92.Tn SCSI ) . 93