RE: XFS corruption during power-blackout

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Jens Axboe wrote: {
On Fri, Jul 01 2005, David Masover wrote:
> Chris Wedgwood wrote:
> >On Wed, Jun 29, 2005 at 07:53:09AM +0300, Al Boldi wrote:
> >
> >
> >>What I found were 4 things in the dest dir:
> >>1. Missing Dirs,Files. That's OK.
> >>2. Files of size 0. That's acceptable.
> >>3. Corrupted Files. That's unacceptable.
> >>4. Corrupted Files with original fingerprint. That's ABSOLUTELY 
> >>unacceptable.
> >
> >
> >disk usually default to caching these days and can lose data as a 
> >result, disable that
> 
> Not always possible.  Some disks lie and leave caching on anyway.

And the same (and others) disks will not honor a flush anyways. 
Moral of that story - avoid bad hardware.
}

1. Sync is not the issue. The issue is whether a journaled FS can detect
corrupted files and flag them after a power-blackout!
2. Moral of the story is: What's ext3 doing the others aren't?

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