118 lines
3.6 KiB
Groff
118 lines
3.6 KiB
Groff
.\" $NetBSD: ht.4,v 1.9 2002/01/15 02:08:38 wiz Exp $
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.\"
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.\" Copyright (c) 1980, 1991, 1993
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.\" The Regents of the University of California. 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: @(#)ht.4 8.1 (Berkeley) 6/5/93
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.\"
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.Dd June 5, 1993
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.Dt HT 4 vax
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.Os
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.Sh NAME
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.Nm ht
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.Nd
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.Tn TM-03 Ns / Tn TE-16 ,
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.Tn TU-45 ,
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.Tn TU-77
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.Tn MASSBUS
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mag tape device interface:
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.Sh SYNOPSIS
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.Cd "ht0 at mba? drive ?"
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.Cd "tu0 at ht0 slave 0"
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.Sh DESCRIPTION
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NOTE: This driver has not been ported from
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.Bx 4.4
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yet.
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.Pp
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The
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.Tn TM-03
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transport combination provides a standard tape drive
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interface as described in
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.Xr mtio 4 .
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All drives provide both 800 and 1600
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.Tn BPI ;
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the
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.Tn TE-16
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runs at 45
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.Tn IPS ,
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the
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.Tn TU-45
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at 75
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.Tn IPS ,
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while the
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.Tn TU-77
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runs at 125
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.Tn IPS
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and autoloads tapes.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It tu%d: no write ring.
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An attempt was made to write on the tape drive
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when no write ring was present; this message is written on the terminal of
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the user who tried to access the tape.
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.Pp
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.It tu%d: not online.
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An attempt was made to access the tape while it
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was offline; this message is written on the terminal of the user
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who tried to access the tape.
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.Pp
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.It tu%d: can't change density in mid-tape.
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An attempt was made to write
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on a tape at a different density than is already recorded on the tape.
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This message is written on the terminal of the user who tried to switch
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the density.
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.Pp
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.It "tu%d: hard error bn%d mbsr=%b er=%b ds=%b."
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A tape error occurred
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at block
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.Em bn ;
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the ht error register and drive status register are
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printed in octal with the bits symbolically decoded. Any error is
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fatal on non-raw tape; when possible the driver will have retried
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the operation which failed several times before reporting the error.
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.El
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.Sh SEE ALSO
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.Xr mt 1 ,
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.Xr tar 1 ,
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.Xr mt 4 ,
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.Xr mtio 4 ,
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.Xr physio 4 ,
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.Xr tm 4 ,
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.Xr ts 4 ,
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.Xr ut 4
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.Sh HISTORY
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An
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.Nm
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driver appeared in
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.At v6 .
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.Sh BUGS
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May hang if physical (non-data) errors occur.
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