Re: Using free space for more fault tolerant file systems.

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From	Patrick Scheible <kkt@zipcon.net>
Newsgroups	alt.comp.hardware.pc-homebuilt, alt.comp.lang.borland-delphi, comp.arch, comp.lang.c, microsoft.public.windows.64bit.general
Subject	Re: Using free space for more fault tolerant file systems.
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Date	Tue, 27 Sep 2011 13:49:50 -0700
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Cross-posted to 5 groups.

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"Skybuck Flying" <Windows7IsOK@DreamPC2006.com> writes:

> Hello,
>
> Here is an idea which might have some value for some people:
>
> The file system of for example Microsoft Windows could use free space
> to store redundant data/copies.
>
> The free space is not used anyway so it could be used to recover from
> bad sectors more easily.
>
> The free space remains available as free space but is secretly also
> used as redundant data.
>
> In the event of a bad sector perhaps the file system can recover from
> it more easily.

Bad sector correction these days is done within the hard drive, the OS
is not involved.

If the OS used "empty" parts of the disc for redundant data storage, it
would fill up.  If there was one redundant copy of every sector, the
drive would hold only half as much.

People who to whom data integrity is that important are already using
RAID arrays.  What you describe would save you in the event of a bad
sector, but wouldn't save you if the entire drive died.  RAID can.

Although you also want off-line backups in a separate location so that a
fire can't wipe out the drive, the RAID array, and the backups all at
once.

-- Patrick

Thread

Using free space for more fault tolerant file systems. "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2011-09-27 19:03 +0200
  Re: Using free space for more fault tolerant file systems. "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2011-09-27 19:06 +0200
  Re: Using free space for more fault tolerant file systems. Patrick Scheible <kkt@zipcon.net> - 2011-09-27 13:49 -0700
    Re: Using free space for more fault tolerant file systems. John Gordon <gordon@panix.com> - 2011-09-27 21:21 +0000
      Re: Using free space for more fault tolerant file systems. Paul <nospam@needed.com> - 2011-09-27 18:05 -0400
        Re: Using free space for more fault tolerant file systems. Nobody <nobody@nowhere.com> - 2011-09-28 02:13 +0100
    Re: Using free space for more fault tolerant file systems. "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2011-09-28 11:47 +0200
  Re: Using free space for more fault tolerant file systems. China Blue Corn Chips <chine.bleu@yahoo.com> - 2011-09-28 06:26 -0700
    Re: Using free space for more fault tolerant file systems. "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2011-09-28 16:39 +0200
      Re: Using free space for more fault tolerant file systems. "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2011-09-28 16:43 +0200

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