201 lines
6.1 KiB
Groff
201 lines
6.1 KiB
Groff
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.\" Copyright (c) 1980, 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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.\" @(#)hk.4 6.4 (Berkeley) 3/27/91
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.\"
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.Dd March 27, 1991
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.Dt HK 4
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.Os BSD 4
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.Sh NAME
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.Nm hk
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.Nd
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.Tn RK6-11 Ns / Tn RK06
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and
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.Tn RK07
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disk interface
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.Sh SYNOPSIS
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.Cd "controller hk0 at uba? csr 0177440 vector rkintr"
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.Cd "disk rk0 at hk0 drive 0"
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.Sh DESCRIPTION
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The
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.Nm hk
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driver
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is a typical block-device disk driver; block device
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.Tn I/O
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is
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described in
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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 special files; if a special file
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needs to be created by hand consult
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.Xr mknod 8 .
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.Sh DISK SUPPORT
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Special file names begin with
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.Sq Li hk
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and
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.Sq Li rhk
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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 is the file system partition
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which 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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and
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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.
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The location and size (in sectors) of the
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partitions for the
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.Tn RK06
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and
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.Tn RK07
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drives are as follows:
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.Bl -column header diskx undefined length
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.Tn RK07 No partitions:
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.Sy disk start length cyl
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hk?a 0 15884 0-240
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hk?b 15906 10032 241-392
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hk?c 0 53790 0-814
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hk?d 25938 15884 393-633
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hk?f 41844 11792 634-814
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hk?g 25938 27786 393-813
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.Tn RK06 No partitions
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.Sy disk start length cyl
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hk?a 0 15884 0-240
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hk?b 15906 11154 241-409
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hk?c 0 27126 0-410
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.El
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.Pp
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On a dual
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.Tn RK-07
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system
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partition hk?a is used
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for the root for one drive
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and partition hk?g for the /usr file system.
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If large jobs are to be run using
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hk?b on both drives as swap area provides a 10Mbyte paging area.
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Otherwise
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partition hk?c on the other drive
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is used as a single large file system.
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.Sh FILES
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.Bl -tag -width /dev/rhk[0-7][a-h] -compact
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.It Pa /dev/hk[0-7][a-h]
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block files
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.It Pa /dev/rhk[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 "hk%d%c: hard error %sing fsbn %d[-%d] cs2=%b ds=%b er=%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, ds and er 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 rk%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 rk%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 rk%d: not ready (came back!).
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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 rk%d%c: soft ecc reading fsbn %d[-%d].
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A recoverable
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.Tn ECC
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error occurred on the
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specified sector(s) in 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 hk%d: lost interrupt.
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A timer watching the controller detected
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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 hp 4 ,
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.Xr uda 4 ,
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.Xr up 4 ,
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.Xr syslogd 8
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.Sh HISTORY
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The
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.Nm
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driver appeared in
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.Bx 4.1 .
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.Sh BUGS
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The
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.Xr write
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function
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scribbles on the tail of incomplete blocks.
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.Pp
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.Tn DEC Ns -standard
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error logging should be supported.
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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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.Pp
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The
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.Tn RK07
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g partition size in rk.c disagrees with that in
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.Pa /etc/disktab.
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