115 lines
3.8 KiB
Groff
115 lines
3.8 KiB
Groff
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.\" Copyright (c) 1983, 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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.\" @(#)drtest.8 6.3 (Berkeley) 3/16/91
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.\"
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.Dd March 16, 1991
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.Dt DRTEST 8
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.Os BSD 4.2
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.Sh NAME
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.Nm drtest
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.Nd standalone disk test program
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.Sh DESCRIPTION
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.Nm Drtest
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is a standalone program used to read a disk
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track by track.
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It was primarily intended as a test program
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for new standalone drivers, but has shown
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useful in other contexts as well, such as
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verifying disks and running speed
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tests. For example, when a disk has been formatted
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(by
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.Xr format 8 ) ,
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you can check that
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hard errors has been taken care of by running
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.Nm drtest .
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No hard errors should be found, but in many cases
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quite a few soft
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.Tn ECC
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errors will be reported.
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.Pp
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While
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.Nm drtest
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is running, the cylinder number is printed on
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the console for every 10th cylinder read.
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.Sh EXAMPLE
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A sample run of
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.Xr drtest
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is shown below.
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In this example (using a 750),
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.Nm drtest
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is loaded from the root file system;
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usually it
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will be loaded from the machine's
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console storage device. Boldface means user input.
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As usual, ``#'' and ``@'' may be used to edit input.
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.Pp
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.Bd -unfilled -offset indent -compact
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.Li \&>>> Ns Sy B/3
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.Li \&%%
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.Li \&loading hk(0,0)boot
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.Li \&Boot
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.Li \&: Sy \&hk(0,0)drtest
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.Li Test program for stand-alone up and hp driver
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.Li Debugging level (1=bse, 2=ecc, 3=bse+ecc)?
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.Li Enter disk name [type(adapter,unit),\ e.g.\ hp(1,3)]? Sy hp(0,0)
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.Li Device data: #cylinders=1024, #tracks=16, #sectors=32
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.Li Testing hp(0,0), chunk size is 16384 bytes.
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.Em (chunk\ size\ is\ the\ number\ of\ bytes read per disk access)
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.Li Start ...Make sure hp(0,0) is online
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.Li \ ...
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.Em (errors are reported as they occur)
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.Li \ ...
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.Em (...program restarts to allow checking other disks)
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.Em (...to abort halt machine with \&^P)
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.Ed
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.Sh DIAGNOSTICS
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The diagnostics are intended to be self explanatory. Note, however, that
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the device number
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in the diagnostic messages is identified as
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.Em typeX
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instead of
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.Em type(a,u)
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where
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.Ar X
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\&= a*8+u, e.g., hp(1,3) becomes hp11.
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.Sh SEE ALSO
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.Xr format 8 ,
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.Xr bad144 8
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.Sh AUTHOR
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Helge Skrivervik
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 4.2 .
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