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-<table class="head">
- <tr>
- <td class="head-ltitle">RL(4)</td>
- <td class="head-vol">Device Drivers Manual (vax)</td>
- <td class="head-rtitle">RL(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">rl</code> &#x2014; <span class="Nd">RL11/ RL01
- and RL02 disk interface</span></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
-<p class="Pp"><code class="Cd">rlc0 at uba? csr 0177440</code>
- <br/>
- <code class="Cd">rl0 at rlc0 drive 0</code>
- <br/>
- <code class="Cd">rl* at rlc? drive ?</code></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
-<p class="Pp">The <code class="Nm">rl</code> driver is a typical block-device
- disk driver; block device I/O is described in
- <a class="Xr">physio(4)</a>.</p>
-<p class="Pp">The script <a class="Xr">MAKEDEV(8)</a> should be used to create
- the special files; if a special file needs to be created by hand consult
- <a class="Xr">mknod(8)</a>.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="FILES"><a class="permalink" href="#FILES">FILES</a></h1>
-<dl class="Bl-tag Bl-compact">
- <dt><span class="Pa">/dev/rl[0-7][a-h]</span></dt>
- <dd>block files</dd>
- <dt><span class="Pa">/dev/rrl[0-7][a-h]</span></dt>
- <dd>raw files</dd>
-</dl>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DIAGNOSTICS"><a class="permalink" href="#DIAGNOSTICS">DIAGNOSTICS</a></h1>
-<dl class="Bl-diag">
- <dt>rl%d: operation incomplete</dt>
- <dd>The current command to the disk did not complete within the timeout
- period. This may be due to hardware failure or a heavily loaded
- UNIBUS.</dd>
- <dt>rl%d: read data CRC</dt>
- <dd>The controller detected a CRC error on data read from the disk. Probably a
- bad disk pack.</dd>
- <dt>rl%d: header CRC</dt>
- <dd>The controller detected a CRC error on header data read from the disk.
- Probably a bad disk pack.</dd>
- <dt>rl%d: data late</dt>
- <dd>The controller was not able to transfer data over the bus fast enough to
- not overflow/underflow the internal FIFO, probably because a heavily
- loaded UNIBUS or mis-ordered UNIBUS devices.</dd>
- <dt>rl%d: header not found</dt>
- <dd>The requested sector was not found before the timer expired. If this error
- is the only error then it may indicate a software bug.</dd>
- <dt>rl%d: non-existent memory</dt>
- <dd>The controller tried to do DMA to/from a non-mapped address. This is a
- software bug.</dd>
- <dt>rl%d: memory parity error</dt>
- <dd>The host memory data sent had a parity error. This is a hardware
- failure.</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">vax/hp(4)</a>, <a class="Xr">vax/uda(4)</a>,
- <a class="Xr">vax/up(4)</a>, <a class="Xr">syslogd(8)</a></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
-<p class="Pp">The <code class="Nm">rl</code> driver has been around nearly
- forever.</p>
-<p class="Pp">A complete new <code class="Nm">rl</code> driver showed up in
- <span class="Ux">NetBSD 1.5</span>.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
-<p class="Pp">Error handling is less than optimal.</p>
-<p class="Pp">Seeks should be interleaved between multiple disks.</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>