Re: XFS corruption during power-blackout

Jens Axboe
2005-07-01T09:23:05Z

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.

--
Jens Axboe