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+.\"	$NetBSD: ccdconfig.8,v 1.1.2.1 1995/11/11 02:43:33 thorpej Exp $
+.\"
+.\" Copyright (c) 1995 Jason R. Thorpe.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed for the NetBSD Project
+.\"	by Jason R. Thorpe.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 17, 1995
+.Dt CCDCONFIG 8
+.Os NetBSD
+.Sh NAME
+.Nm ccdconfig
+.Nd configuration utility for the concatenated disk driver
+.Sh SYNOPSIS
+.Nm ccdconfig
+.Op Fl cv
+.Ar ccd
+.Ar ileave
+.Op Ar flags
+.Ar dev
+.Op Ar ...
+.Nm ccdconfig
+.Fl C
+.Op Fl v
+.Op Fl f Ar config_file
+.Nm ccdconfig
+.Fl u
+.Op Fl v
+.Ar ccd
+.Op Ar ...
+.Nm ccdconfig
+.Fl U
+.Op Fl v
+.Op Fl f Ar config_file
+.Nm ccdconfig
+.Fl g
+.Op Fl M Ar core
+.Op Fl N Ar system
+.Oo
+.Ar ccd Oo ...
+.Oc
+.Oc
+.Sh DESCRIPTION
+.Nm Ccdconfig
+is used to dynamically configure and unconfigure concatenated disk
+devices, or ccds.  For more information about the ccd, see
+.Xr ccd 4 .
+.Pp
+The options are as follows:
+.Bl -tag -width indent
+.It Fl c
+Configure a ccd.  This is the default behavior of
+.Nm ccdconfig .
+.It Fl C
+Configure all ccd devices listed in the ccd configuration file.
+.It Fl f Ar config_file
+When configuring or unconfiguring all devices, read the file
+.Pa config_file
+instead of the default
+.Pa /etc/ccd.conf .
+.It Fl g
+Dump the current ccd configuration in a format suitable for use as the
+ccd configuration file.  If no arguments are specified, every configured
+ccd is dumped.  Otherwise, the configuration of each listed ccd is dumped.
+.It Fl M Ar core
+Extract values associated with the name list from
+.Pa core
+instead of the default
+.Pa /dev/mem .
+.It Fl N Ar system
+Extract the name list from
+.Pa system
+instead of the default
+.Pa /netbsd .
+.It Fl u
+Unconfigure a ccd.
+.It Fl U
+Unconfigure all ccd devices listed the ccd configuration file.
+.It Fl v
+Causes
+.Nm ccdconfig
+to be verbose.
+.El
+.Pp
+A ccd is described on the command line and in the ccd configuration
+file by the name of the ccd, the interleave factor, the ccd configuration
+flags, and a list of one or more devices.  The flags may be represented
+as a decimal number, a hexadecimal number, a comma-separated list
+of strings, or the word
+.Dq none .
+The flags are as follows:
+.Bd -unfilled -offset indent
+CCDF_SWAP		0x01		Interleave should be dmmax
+CCDF_UNIFORM	0x02		Use uniform interleave
+.Ed
+.Pp
+The format in the
+configuration file appears exactly as if it were entered on the command line.
+Note that on the command line and in the configuration file, the
+.Pa flags
+argument is optional.
+.Bd -unfilled -offset indent
+#
+# /etc/ccd.conf
+# Configuration file for concatenated disk devices
+#
+.Pp
+# ccd           ileave  flags   component devices
+ccd0            16      none    /dev/sd2e /dev/sd3e
+.Ed
+.Pp
+.Sh EXAMPLE
+The following command, executed from the command line, would configure ccd0
+with 4 components (/dev/sd2e, /dev/sd3e, /dev/sd4e, /dev/sd5e), and an
+interleave factor of 32 blocks.
+.Bd -unfilled -offset indent
+# ccdconfig ccd0 32 0 /dev/sd2e /dev/sd3e /dev/sd4e /dev/sd5e
+.Ed
+.Pp
+.Sh FILES
+/etc/ccd.conf - default ccd configuration file.
+.Sh SEE ALSO
+.Xr ccd 4 ,
+.Xr rc 8 .
+.Sh HISTORY
+The
+.Nm ccdconfig
+command first appeared in
+.Nx 1.0a .