259 lines
8.0 KiB
Groff
259 lines
8.0 KiB
Groff
.\" Copyright (c) 1980,1988, 1991 Regents of the University of California.
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.\" All rights reserved.
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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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.\" 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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.\" from: @(#)up.4 6.4 (Berkeley) 3/27/91
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.\" $Id: up.4,v 1.2 1993/08/01 07:35:55 mycroft Exp $
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.\"
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.Dd March 27, 1991
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.Dt UP 4 vax
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.Os BSD 4
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.Sh NAME
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.Nm up
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.Nd unibus storage module controller/drives
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.Sh SYNOPSIS
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.Cd "controller sc0 at uba? csr 0176700 vector upintr
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.Cd "disk up0 at sc0 drive 0"
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.Sh DESCRIPTION
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This is a generic
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.Tn UNIBUS
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storage module disk driver.
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It is specifically designed to work with the
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Emulex
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.Tn SC-21
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and
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.Tn SC-31
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controllers.
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It can be easily
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adapted to other controllers (although bootstrapping will
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not necessarily be directly possible.)
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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 up
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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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It is recommended as a security precaution to not create special files
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for devices which may never be installed.
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.Sh DISK SUPPORT
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The driver interrogates the controller's holding register
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to determine the type of drive attached. The driver recognizes
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seven different drives:
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.Tn CDC
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9762,
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.Tn CDC
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9766,
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.Tn AMPEX DM Ns 980 ,
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.Tn AMPEX
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9300,
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.Tn AMPEX
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Capricorn,
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.Tn FUJITSU
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160, and
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.Tn FUJITSU
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Eagle
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(the Eagle is not supported by the SC-21).
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.Pp
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Special file names begin with
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.Sq Li up
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and
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.Sq Li rup
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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, the
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file system partition, is
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designated 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 set: 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 (see
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.Xr physio 4 ) .
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The location and size (in 512 byte sectors) of the
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partitions for the above drives:
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.Bl -column header diskx undefined length
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.Tn CDC No 9762 partitions
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.Sy disk start length cyls
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hp?a 0 15884 0-99
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hp?b 16000 33440 100-309
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hp?c 0 131680 0-822
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hp?d 49600 15884 309-408
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hp?e 65440 55936 409-758
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hp?f 121440 10080 759-822
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hp?g 49600 82080 309-822
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.Tn CDC No 9766 300M drive partitions:
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.Sy disk start length cyl
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up?a 0 15884 0-26
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up?b 16416 33440 27-81
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up?c 0 500384 0-822
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up?d 341696 15884 562-588
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up?e 358112 55936 589-680
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up?f 414048 861760 681-822
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up?g 341696 158528 562-822
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up?h 49856 291346 82-561
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.Tn AMPEX DM Ns No 980 partitions
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.Sy disk start length cyls
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hp?a 0 15884 0-99
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hp?b 16000 33440 100-309
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hp?c 0 131680 0-822
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hp?d 49600 15884 309-408
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hp?e 65440 55936 409-758
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hp?f 121440 10080 759-822
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hp?g 49600 82080 309-822
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.Tn AMPEX No 9300 300M drive partitions:
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.Sy disk start length cyl
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up?a 0 15884 0-26
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up?b 16416 33440 27-81
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up?c 0 495520 0-814
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up?d 341696 15884 562-588
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up?e 358112 55936 589-680
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up?f 414048 81312 681-814
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up?g 341696 153664 562-814
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up?h 49856 291346 82-561
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.Tn AMPEX No Capricorn 330M drive partitions:
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.Sy disk start length cyl
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hp?a 0 15884 0-31
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hp?b 16384 33440 32-97
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hp?c 0 524288 0-1023
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hp?d 342016 15884 668-699
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hp?e 358400 55936 700-809
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hp?f 414720 109408 810-1023
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hp?g 342016 182112 668-1023
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hp?h 50176 291346 98-667
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.Tn FUJITSU No 160M drive partitions:
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.Sy disk start length cyl
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up?a 0 15884 0-49
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up?b 16000 33440 50-154
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up?c 0 263360 0-822
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up?d 49600 15884 155-204
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up?e 65600 55936 205-379
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up?f 121600 141600 380-822
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up?g 49600 213600 155-822
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.Tn FUJITSU No Eagle partitions
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.Sy disk start length cyls
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hp?a 0 15884 0-16
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hp?b 16320 66880 17-86
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hp?c 0 808320 0-841
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hp?d 375360 15884 391-407
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hp?e 391680 55936 408-727
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hp?f 698880 109248 728-841
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hp?g 375360 432768 391-841
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hp?h 83520 291346 87-390
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.El
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.Pp
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The up?a partition is normally used for the root file system,
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the up?b partition as a paging area,
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and the up?c partition for pack-pack copying (it maps the entire disk).
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On 160M drives the up?g partition maps the rest of the pack.
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On other drives both up?g and up?h are used to map the
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remaining cylinders.
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.Sh FILES
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.Bl -tag -width Pa -compact
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.It Pa /dev/up[0-7][a-h]
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block files
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.It Pa /dev/rup[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 "up%d%c: hard error %sing fsbn %d[-%d] cs2=%b er1=%b er2=%b."
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An unrecoverable error occurred during transfer of the specified
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filesystem block number(s),
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which are logical block numbers on the indicated partition.
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The contents of the cs2, er1 and er2 registers are printed
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in octal and symbolically with bits decoded.
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The error was either unrecoverable, or a large number of retry attempts
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(including offset positioning and drive recalibration) could not
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recover the error.
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.Pp
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.It "up%d: write locked."
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The write protect switch was set on the drive
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when a write was attempted. The write operation is not recoverable.
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.Pp
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.It "up%d: not ready."
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The drive was spun down or off line when it was
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accessed. The i/o operation is not recoverable.
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.Pp
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.It "up%d: not ready (flakey)."
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The drive was not ready, but after
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printing the message about being not ready (which takes a fraction
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of a second) was ready. The operation is recovered if no further
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errors occur.
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.Pp
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.It "up%d%c: soft ecc reading fsbn %d[-%d]."
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A recoverable ECC error occurred on the
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specified sector of the specified disk partition.
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This happens normally
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a few times a week. If it happens more frequently than
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this the sectors where the errors are occurring should be checked to see
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if certain cylinders on the pack, spots on the carriage of the drive
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or heads are indicated.
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.Pp
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.It "sc%d: lost interrupt."
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A timer watching the controller detecting
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no interrupt for an extended period while an operation was outstanding.
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This indicates a hardware or software failure. There is currently a
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hardware/software problem with spinning down drives while they are
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being accessed which causes this error to occur.
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The error causes a
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.Tn UNIBUS
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reset, and retry of the pending operations.
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If the controller continues to lose interrupts, this error will recur
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a few seconds later.
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.El
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.Sh SEE ALSO
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.Xr hk 4 ,
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.Xr hp 4 ,
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.Xr uda 4
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.Sh HISTORY
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The
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.Nm up
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driver appeared in
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.Bx 4.0 .
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.Sh BUGS
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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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.Pp
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The partition tables for the file systems should be read off of each
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pack, 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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