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Date: Sun, 07 Jun 2009 03:26:15 -0700
From: Michael David Crawford <mdc@prgmr.com>
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Subject: Re: please recommend a disk-exercising program?
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Check the downloads section at the disk manufacturer's website.  All the 
disk vendors have utilities that can test their disks.

Generally these utilities can use proprietary commands to exercise 
self-test functions that generally aren't accessible to non-proprietary 
test code.

Most of the utilities are DOS boot disk images.  You make either a 
floppy or a CD from them, then boot off of it.

Mike
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