1.\" Copyright (c) 1983, 1991 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)drtest.8 6.3 (Berkeley) 3/16/91 33.\" $Id: drtest.8,v 1.2 1993/08/01 07:34:44 mycroft Exp $ 34.\" 35.Dd March 16, 1991 36.Dt DRTEST 8 37.Os BSD 4.2 38.Sh NAME 39.Nm drtest 40.Nd standalone disk test program 41.Sh DESCRIPTION 42.Nm Drtest 43is a standalone program used to read a disk 44track by track. 45It was primarily intended as a test program 46for new standalone drivers, but has shown 47useful in other contexts as well, such as 48verifying disks and running speed 49tests. For example, when a disk has been formatted 50(by 51.Xr format 8 ) , 52you can check that 53hard errors has been taken care of by running 54.Nm drtest . 55No hard errors should be found, but in many cases 56quite a few soft 57.Tn ECC 58errors will be reported. 59.Pp 60While 61.Nm drtest 62is running, the cylinder number is printed on 63the console for every 10th cylinder read. 64.Sh EXAMPLE 65A sample run of 66.Xr drtest 67is shown below. 68In this example (using a 750), 69.Nm drtest 70is loaded from the root file system; 71usually it 72will be loaded from the machine's 73console storage device. Boldface means user input. 74As usual, ``#'' and ``@'' may be used to edit input. 75.Pp 76.Bd -unfilled -offset indent -compact 77.Li \&>>> Ns Sy B/3 78.Li \&%% 79.Li \&loading hk(0,0)boot 80.Li \&Boot 81.Li \&: Sy \&hk(0,0)drtest 82.Li Test program for stand-alone up and hp driver 83 84.Li Debugging level (1=bse, 2=ecc, 3=bse+ecc)? 85.Li Enter disk name [type(adapter,unit),\ e.g.\ hp(1,3)]? Sy hp(0,0) 86.Li Device data: #cylinders=1024, #tracks=16, #sectors=32 87.Li Testing hp(0,0), chunk size is 16384 bytes. 88.Em (chunk\ size\ is\ the\ number\ of\ bytes read per disk access) 89.Li Start ...Make sure hp(0,0) is online 90.Li \ ... 91.Em (errors are reported as they occur) 92.Li \ ... 93.Em (...program restarts to allow checking other disks) 94.Em (...to abort halt machine with \&^P) 95.Ed 96.Sh DIAGNOSTICS 97The diagnostics are intended to be self explanatory. Note, however, that 98the device number 99in the diagnostic messages is identified as 100.Em typeX 101instead of 102.Em type(a,u) 103where 104.Ar X 105\&= a*8+u, e.g., hp(1,3) becomes hp11. 106.Sh SEE ALSO 107.Xr format 8 , 108.Xr bad144 8 109.Sh AUTHOR 110Helge Skrivervik 111.Sh HISTORY 112The 113.Nm 114command appeared in 115.Bx 4.2 . 116