2.11BSD#431 - /usr/man/cat8/drtest.0

DRTEST(8)	    UNIX Programmer's Manual		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 contexts
     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)


Printed 11/26/99	  May 19, 1986				1


DRTEST(8)	    UNIX Programmer's Manual		DRTEST(8)


AUTHOR
     Helge Skrivervik


Printed 11/26/99	  May 19, 1986				2