DRTEST(8) (vax)

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

# NAME

`drtest` — stand-alone disk test program

# DESCRIPTION

`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.

# EXAMPLES

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

bad144(8), vax/format(8)

# HISTORY

The `drtest` command appeared in 4.2BSD.

# AUTHORS

Helge Skrivervik

February 17, 2017 | NetBSD 11.0