On Tue, Nov 10, 2009 at 11:18:57AM -0700, Theo de Raadt wrote:
> If you want to never lose data, you have an option. Make the filesystem
> syncronous, using the -o sync option.
>
> If you can't accept the performance hit from that, then please accept
> that all the work done over the ages is only on ensuring metadata-safety
> for a low performance penalty. It has never been about trying to
> promise file data consistancy when that could only be achieved by
> syncronous file data writing.
And the more or less correct solution to improve the performance is
battery backed RAID write cache, but it's no silver bullet.
