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<table class="head">
<tr>
<td class="head-ltitle">TM(4)</td>
<td class="head-vol">Device Drivers Manual (vax)</td>
<td class="head-rtitle">TM(4)</td>
</tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">tm</code> — <span class="Nd">TM-11/TE-10
mag tape device interface</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><a class="permalink" href="#controller"><b class="Sy" id="controller">controller
tm0 at uba? csr 0172520 vector tmintr</b></a>
<a class="permalink" href="#tape"><b class="Sy" id="tape">tape te0 at tm0
drive 0</b></a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">NOTE: This driver has not been ported from
<span class="Ux">4.4BSD</span> yet.</p>
<p class="Pp">The TM-11/TE-10 combination provides a standard tape drive
interface as described in <a class="Xr">vax/mtio(4)</a>. Hardware
implementing this on the VAX is typified by the Emulex TC-11 controller
operating with a Kennedy model 9300 tape transport, providing 800 and 1600
BPI operation at 125 IPS.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DIAGNOSTICS"><a class="permalink" href="#DIAGNOSTICS">DIAGNOSTICS</a></h1>
<dl class="Bl-diag">
<dt>te%d: no write ring.</dt>
<dd>An attempt was made to write on the tape drive when no write ring was
present; this message is written on the terminal of the user who tried to
access the tape.</dd>
<dt>te%d: not online.</dt>
<dd>An attempt was made to access the tape while it was offline; this message
is written on the terminal of the user who tried to access the tape.</dd>
<dt>te%d: can't change density in mid-tape.</dt>
<dd>An attempt was made to write on a tape at a different density than is
already recorded on the tape. This message is written on the terminal of
the user who tried to switch the density.</dd>
<dt id="bn">te%d: hard error bn%d er=%b.</dt>
<dd>A tape error occurred at block
<a class="permalink" href="#bn"><i class="Em">bn</i></a>; the tm error
register is printed in octal with the bits symbolically decoded. Any error
is fatal on non-raw tape; when possible the driver will have retried the
operation which failed several times before reporting the error.</dd>
<dt>te%d: lost interrupt.</dt>
<dd>A tape operation did not complete within a reasonable time, most likely
because the tape was taken off-line during rewind or lost vacuum. The
controller should, but does not, give an interrupt in these cases. The
device will be made available again after this message, but any current
open reference to the device will return an error as the operation in
progress aborts.</dd>
</dl>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<p class="Pp"><a class="Xr">tar(1)</a>, <a class="Xr">vax/mt(1)</a>,
<a class="Xr">vax/ht(4)</a>, <a class="Xr">vax/mt(4)</a>,
<a class="Xr">vax/mtio(4)</a>, <a class="Xr">vax/ts(4)</a>,
<a class="Xr">vax/ut(4)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">A <code class="Nm">tm</code> driver appeared in
<span class="Ux">Version 6 AT&T UNIX</span>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
<p class="Pp">May hang if a physical (non-data) error occurs.</p>
</section>
</div>
<table class="foot">
<tr>
<td class="foot-date">February 17, 2017</td>
<td class="foot-os">NetBSD 10.1</td>
</tr>
</table>
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