Thanks for the explanation. 

 It seems I need to educate myself some more on how hard drives and
their electronics flag bad sectors independent of the file and operating
system! 

-----Original Message-----
From: Ben Scott [mailto:[email protected]] 
Sent: Friday, June 25, 2010 10:44 AM
To: NT System Admin Issues
Subject: Re: TrueCrypt

On Fri, Jun 25, 2010 at 9:26 AM, Joe Tinney <[email protected]> wrote:
> If the entire drive is encrypted how would SpinRite be able to 
> correctly identify the filesystem type and update the appropriate 
> entries when it moves data?

  SpinRite is not filesystem aware.  All SpinRite does is read each disk
block into memory (retrying if needed), repeatedly write and read test
patterns to the disk block location, and then write the original data
back.

  SpinRite does nothing for you if the disk drive has a mechanical or
electronics fault, or if the drive is incapable of reading blocks from
the media.

  Frankly, I think SpinRite is rather overrated in this day of
intelligent disk electronics and freely-available utilities that do
similar things.  I tried it on a laptop hard disk drive that was giving
media errors a few years ago, and it didn't even find anything wrong.
Even MS-DOS knew there was something wrong with the disk.
SpinRite may have been more useful back in the days of dumb disks and
OSes, but I think it's outlived its usefulness.

  To GRC's credit, they did refund my money when I complained.

-- Ben

~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~
<http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

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