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BSD 2.11 - man page for drtest (bsd section 8)

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DRTEST(8)										DRTEST(8)

NAME
       drtest - standalone disk test program

DESCRIPTION
       Drtest  is  a  standalone  program  used  to read a disk track by track.  It was primarily
       intended as a test program for new standalone drivers, but has shown useful in other  con-
       texts  as  well, such as verifying disks and running speed tests. For example, when a disk
       has been formatted (by format(8)), you can check that hard errors has been taken  care  of
       by running drtest.  No hard errors should be found, but in many cases quite a few soft ECC
       errors will be reported.

       While drtest is running, the cylinder number is printed on  the	console  for  every  10th
       cylinder read.

EXAMPLE
       A  sample  run  of drtest is shown below.  In this example (using a 750), drtest is loaded
       from the root file system; usually it will be loaded from the  machine's  console  storage
       device.	Boldface means user input.  As usual, ``#'' and ``@'' may be used to edit input.

	    >>>B/3
	    %%
	    loading hk(0,0)boot
	    Boot
	    : hk(0,0)drtest
	    Test program for stand-alone up and hp driver

	    Debugging level (1=bse, 2=ecc, 3=bse+ecc)?
	    Enter disk name [type(adapter,unit), e.g. hp(1,3)]? hp(0,0)
	    Device data: #cylinders=1024, #tracks=16, #sectors=32
	    Testing hp(0,0), chunk size is 16384 bytes.
	    (chunk size is the number of bytes read per disk access)
	    Start ...Make sure hp(0,0) is online
	     ...
	    (errors are reported as they occur)
	     ...
	    (...program restarts to allow checking other disks)
	    (...to abort halt machine with ^P)

DIAGNOSTICS
       The diagnostics are intended to be self explanatory. Note, however, that the device number
       in the diagnostic messages is identified as  typeX instead of type(a,u) where X	=  a*8+u,
       e.g., hp(1,3) becomes hp11.

SEE ALSO
       format(8V), bad144(8)

AUTHOR
       Helge Skrivervik

4.2 Berkeley Distribution		   May 19, 1986 				DRTEST(8)
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