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Groups > comp.os.linux.misc > #13269

Re: More on corrupted disk data..

From Tim Watts <tw_usenet@dionic.net>
Newsgroups comp.os.linux.misc
Subject Re: More on corrupted disk data..
Date 2015-01-05 14:29 +0000
Message-ID <1njqnb-15h.ln1@squidward.dionic.net> (permalink)
References <m8e6sl$ec7$1@news.albasani.net>

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On 05/01/15 14:25, The Natural Philosopher wrote:
>
> The question of recovering damaged data have raised a question in my mind:
>
> What organisation of data has the most redundancy (apart from RAID) so
> the best chance of recovering significant chunks of it? it would seem
> that a zip or other compressed single backup file has to be the worst..??
>
>

Depends if the compression algorithm is block based. If so, then the 
loss of one block would take out 2, maybe 3 block of real data and the 
rest would be recoverable.

A compression scheme that could not resync beyond a broken block would 
be a very poor choice.

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Thread

More on corrupted disk data.. The Natural Philosopher <tnp@invalid.invalid> - 2015-01-05 14:25 +0000
  Re: More on corrupted disk data.. Tim Watts <tw_usenet@dionic.net> - 2015-01-05 14:29 +0000
  Re: More on corrupted disk data.. Richard Kettlewell <rjk@greenend.org.uk> - 2015-01-05 15:01 +0000
  Re: More on corrupted disk data.. Robert Heller <heller@deepsoft.com> - 2015-01-05 09:35 -0600
    Re: More on corrupted disk data.. The Natural Philosopher <tnp@invalid.invalid> - 2015-01-05 15:46 +0000
      Re: More on corrupted disk data.. "John F" <j@j.ii> - 2015-01-08 13:25 -0800
        Re: More on corrupted disk data.. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2015-01-08 14:09 -0800
          Re: More on corrupted disk data.. The Natural Philosopher <tnp@invalid.invalid> - 2015-01-08 23:35 +0000
          Re: More on corrupted disk data.. Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2015-01-08 16:05 -0800
            Re: More on corrupted disk data.. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2015-01-08 20:01 -0800
              Re: More on corrupted disk data.. Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2015-01-08 20:51 -0800
                Re: More on corrupted disk data.. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2015-01-08 21:38 -0800
                Re: More on corrupted disk data.. Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2015-01-08 21:44 -0800
                Re: More on corrupted disk data.. The Natural Philosopher <tnp@invalid.invalid> - 2015-01-09 09:18 +0000

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