DRTEST(8) System Manager's Manual (vax) DRTEST(8)

drteststand-alone disk test program

drtest is a stand-alone program used to read a disk track by track. It was primarily intended as a test program for new stand-alone 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 vax/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.

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.

>>>
%%
loading hk(0,0)boot
Boot
: 
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)]? 
Device data: #cylinders=1024, #tracks=16, #sectors=32
Testing hp(0,0), chunk size is 16384 bytes.

Start ...Make sure hp(0,0) is online
 ...

 ...

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

bad144(8), vax/format(8)

The drtest command appeared in 4.2BSD.

Helge Skrivervik

February 17, 2017 NetBSD 10.99