1993-03-21 12:45:37 +03:00
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.\" Copyright (c) 1990, 1991 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Systems Programming Group of the University of Utah Computer
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.\" Science Department.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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1993-08-01 11:54:52 +04:00
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.\" from: @(#)rd.4 5.2 (Berkeley) 3/27/91
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.\" $Id: rd.4,v 1.2 1993/08/01 07:56:24 mycroft Exp $
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1993-03-21 12:45:37 +03:00
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.\"
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.Dd March 27, 1991
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.Dt RD 4 hp300
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.Os
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.Sh NAME
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.Nm rd
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.Nd
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.Tn CS/80
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disk interface
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.Sh SYNOPSIS
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.Cd "master hpib? at scode?"
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.Cd "disk rd? at hpib? slave?"
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.Sh DESCRIPTION
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This is a generic
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.Tn CS/80
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disk driver.
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Only a small number of possible
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.Tn CS/80
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drives are supported,
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but others can easily be added by adding tables to the driver.
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It is a typical block-device driver; see
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.Xr physio 4 .
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.Pp
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The script
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.Xr MAKEDEV 8
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should be used to create the
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.Nm rd
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special files; consult
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.Xr mknod 8
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if a special file needs to be made manually.
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.Sh DISK SUPPORT
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The driver interrogates the controller
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to determine the type of drive attached.
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The driver recognizes the following drives:
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7912, 7914, 7933, 7936, 7937, 7945,
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.Tn 757A/B ,
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.Tn 7958A/B ,
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.Tn 7959B,
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7962, 7963, 9122, 9134, 7912, 7936,
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and 9122,
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not all of which have been tested.
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Special file names begin with
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.Sq Li rd
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and
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.Sq Li rrd
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for the block and character files respectively. The second
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component of the name, a drive unit number in the range of zero to
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seven, is represented by a
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.Sq Li ?
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in the disk layouts below. The last component of the name is the
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file system partition
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and is designated
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by a letter from
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.Sq Li a
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to
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.Sq Li h
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which also corresponds to a minor device number sets: zero to seven,
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eight to 15, 16 to 23 and so forth for drive zero, drive two and drive
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three respectively
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(see physio 4 ) .
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The location and size (in sectors) of the
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partitions for these drives:
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.Bl -column header diskx undefined length
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.Tn 7945/7946 No partitions:
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.Sy disk start length cyls
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rd?a 112 15904 1-142
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rd?b 16016 20160 143-322
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rd?c 0 108416 0-967
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rd?d 16016 40320 143-502
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rd?e undefined
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rd?f undefined
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rd?g 36176 72240 323-967
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rd?h 56336 52080 503-967
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.Tn 9134D No partitions:
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.Sy disk start length cyls
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rd?a 96 15936 1-166
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rd?b 16032 13056 167-302
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rd?c 0 29088 0-302
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rd?d undefined
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rd?e undefined
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rd?f undefined
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rd?g undefined
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rd?h undefined
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.Tn 9122S No partitions:
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.Sy disk start length cyls
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rd?a undefined
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rd?b undefined
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rd?c 0 1232 0-76
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rd?d undefined
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rd?e undefined
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rd?f undefined
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rd?g undefined
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rd?h undefined
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.Tn 7912P No partitions:
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.Sy disk start length cyls
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rd?a 0 15904 0-70
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rd?b 16128 22400 72-171
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rd?c 0 128128 0-571
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rd?d 16128 42560 72-261
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rd?e undefined
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rd?f undefined
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rd?g 38528 89600 172-571
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rd?h 58688 69440 262-571
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.Tn 7914CT/P No partitions:
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.Sy disk start length cyls
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rd?a 224 15904 1-71
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rd?b 16128 40320 72-251
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rd?c 0 258048 0-1151
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rd?d 16128 64960 72-361
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rd?e 81088 98560 362-801
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rd?f 179648 78400 802-1151
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rd?g 56448 201600 252-1151
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rd?h 81088 176960 362-1151
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.Tn 7958A No partitions:
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.Sy disk start length cyls
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rd?a 252 16128 1-64
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rd?b 16380 32256 65-192
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rd?c 0 255276 0-1012
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rd?d 16380 48384 65-256
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rd?e 64764 100800 257-656
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rd?f 165564 89712 657-1012
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rd?g 48636 206640 193-1012
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rd?h 64764 190512 257-1012
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.Tn 7957A No partitions:
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.Sy disk start length cyls
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rd?a 154 16016 1-104
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rd?b 16170 24640 105-264
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rd?c 0 159544 0-1035
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rd?d 16170 42350 105-379
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rd?e 58520 54824 380-735
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rd?f 113344 46200 736-1035
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rd?g 40810 118734 265-1035
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rd?h 58520 101024 380-1035
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.Tn 7933H No partitions:
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.Sy disk start length cyls
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rd?a 598 16146 1-27
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rd?b 16744 66976 28-139
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rd?c 0 789958 0-1320
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rd?d 83720 16146 140-166
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rd?e 99866 165646 167-443
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rd?f 265512 165646 444-720
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rd?g 83720 706238 140-1320
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rd?h 431158 358800 721-1320
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.Tn 9134L No partitions:
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.Sy disk start length cyls
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rd?a 80 15920 1-199
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rd?b 16000 20000 200-449
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rd?c 0 77840 0-972
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rd?d 16000 32000 200-599
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rd?e undefined
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rd?f undefined
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rd?g 36000 41840 450-972
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rd?h 48000 29840 600-972
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.Tn 7936H No partitions:
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.Sy disk start length cyls
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rd?a 861 16359 1-19
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rd?b 17220 67158 20-97
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rd?c 0 600978 0-697
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rd?d 84378 16359 98-116
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rd?e 100737 120540 117-256
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rd?f 220416 120540 256-395
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rd?g 84378 516600 98-697
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rd?h 341817 259161 397-697
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.Tn 7937H No partitions:
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.Sy disk start length cyls
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rd?a 1599 15990 1-10
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rd?b 17589 67158 11-52
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rd?c 0 1116102 0-697
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rd?d 84747 15990 53-62
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rd?e 100737 246246 63-216
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rd?f 346983 246246 217-370
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rd?g 84747 1031355 53-697
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rd?h 593229 522873 371-697
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.Tn 7957B/7961B No partitions:
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.Sy disk start length cyls
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rd?a 126 16002 1-127
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rd?b 16128 32760 128-387
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rd?c 0 159894 0-1268
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rd?d 16128 49140 128-517
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rd?e 65268 50400 518-917
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rd?f 115668 44226 918-1268
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rd?g 48888 111006 388-1268
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rd?h 65268 94626 518-1268
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.Tn 7958B/7962B No partitions:
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.Sy disk start length cyls
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rd?a 378 16254 1-43
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rd?b 16632 32886 44-130
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rd?c 0 297108 0-785
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rd?d 16632 49140 44-173
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rd?e 65772 121716 174-495
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rd?f 187488 109620 496-785
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rd?g 49518 247590 131-785
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rd?h 65772 231336 174-785
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.Tn 7959B/7963B No partitions:
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.Sy disk start length cyls
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rd?a 378 16254 1-43
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rd?b 16632 49140 44-173
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rd?c 0 594216 0-1571
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rd?d 16632 65772 44-217
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rd?e 82404 303912 218-1021
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rd?f 386316 207900 1022-1571
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rd?g 65772 528444 174-1571
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rd?h 82404 511812 218-1571
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.El
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.Pp
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The eight partitions as given support four basic, non-overlapping layouts,
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though not all partitions exist on all drive types.
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.Pp
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In the first layout there are three partitions and a ``bootblock'' area.
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The bootblock area is at the beginning of the disk and holds
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the standalone disk boot program.
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The
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.Pa rd?a
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partition is for the root file system,
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.Pa rd?b
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is a paging/swapping area, and
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.Pa rd?g
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is for everything else.
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.Pp
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The second layout is the same idea,
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but has a larger paging/swapping partition
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.Pq Pa rd?d
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and
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a smaller ``everything else'' partition
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.Pq Pa rd?h .
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This layout is better for environments which run many large processes.
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.Pp
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The third layout is a variation of the second,
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but breaks the
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.Pa rd?h
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partition into two partitions,
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.Pa rd?e
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and
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.Pa rd?f .
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.Pp
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The final layout is intended for a large, single file system second disk.
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It is also used when writing out the boot program since it is the only
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partition mapping the bootblock area.
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.Sh FILES
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.Bl -tag -width /dev/rrd[0-7][a-h] -compact
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.It Pa /dev/rd[0-7][a-h]
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block files
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.It Pa /dev/rrd[0-7][a-h]
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raw files
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.El
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "rd%d err: v%d u%d, R0x%x F0x%x A0x%x I0x%x, block %d"
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An unrecoverable data error occurred during transfer of the
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specified block on the specified disk.
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.El
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.Sh HISTORY
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The
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.Nm
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driver
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.Ud
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.Sh BUGS
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The current disk partitioning is totally bogus.
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.Tn CS/80
|
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|
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drives have 256 byte sectors which are mapped to 512 byte
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``sectors'' by the driver.
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Since some
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.Tn CS/80
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drives have an odd number of sectors per cylinder,
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the disk geometry used is not always accurate.
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.Pp
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The partition tables for the file systems should be read off of each pack,
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as they are never quite what any single installation would prefer,
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and this would make packs more portable.
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.Pp
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A program to analyze the logged error information (even in its
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present reduced form) is needed.
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