1DRTEST(8)                   System Manager's Manual                  DRTEST(8)
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NAME

6       drtest - standalone disk test program
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DESCRIPTION

9       Drtest  is a standalone program used to read a disk track by track.  It
10       was primarily intended as a test program for  new  standalone  drivers,
11       but has shown useful in other contexts as well, such as verifying disks
12       and running speed tests. For example, when a disk  has  been  formatted
13       (by  format(8)),  you can check that hard errors has been taken care of
14       by running drtest.  No hard errors should be found, but in  many  cases
15       quite a few soft ECC errors will be reported.
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17       While  drtest is running, the cylinder number is printed on the console
18       for every 10th cylinder read.
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EXAMPLE

21       A sample run of drtest is shown below.  In this example (using a  750),
22       drtest  is  loaded from the root file system; usually it will be loaded
23       from the machine's console storage device.  Boldface means user  input.
24       As usual, ``#'' and ``@'' may be used to edit input.
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26            >>>B/3
27            %%
28            loading hk(0,0)boot
29            Boot
30            : hk(0,0)drtest
31            Test program for stand-alone up and hp driver
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33            Debugging level (1=bse, 2=ecc, 3=bse+ecc)?
34            Enter disk name [type(adapter,unit), e.g. hp(1,3)]? hp(0,0)
35            Device data: #cylinders=1024, #tracks=16, #sectors=32
36            Testing hp(0,0), chunk size is 16384 bytes.
37            (chunk size is the number of bytes read per disk access)
38            Start ...Make sure hp(0,0) is online
39             ...
40            (errors are reported as they occur)
41             ...
42            (...program restarts to allow checking other disks)
43            (...to abort halt machine with ^P)
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DIAGNOSTICS

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

52       format(8V), bad144(8)
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AUTHOR

55       Helge Skrivervik
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594.2 Berkeley Distribution        May 19, 1986                        DRTEST(8)
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