Re: Current SSD setup recommendations for laptop with Debian
On Mon, 09 Jul 2012, Stan Hoeppner wrote:
> On 7/9/2012 12:38 AM, Henrique de Moraes Holschuh wrote:
> > On Sun, 08 Jul 2012, Stan Hoeppner wrote:
> >> EXT3 should be fine. Use data=journal if you want maximum filesystem
> >
> > I'd recommend staying away from ext3 in data=journal mode, unless you hear
> > the opposite from Ted T'so.
> >
> > AFAIK, nobody upstream pays much (any?) attention to ext3 data=journal,
> > you'll be the guinea pig that will hit first any eventual data-corruption
> > regression caused by a change somewhere else in the kernel.
>
> If that's truly the case then the data=journal mount option should be
> removed and the man page updated to reflect this, especially given that
> this is supposed to be the safest EXT3 journaling mode, with all data
> being written to the journal before being written to the live filesystem.
The only way to really know whether it is currently true or not is to
ask in linux-fsdevel or ask one of the ext3 maintainers directly. Maybe
ext3 even in the less used data=journaled mode is undergoing strong
automated testing nowadays, which would make it actually safer now than
it was in the past.
> It's been clear since the beginning of the thread that the OP doesn't
> need more performance. More safety possibly, but not more performance.
Well, ext3 is already entering the bitrot phase of the bathtub curve.
OTOH, since it doesn't do delayed allocations like xfs and ext4, it is
supposed to be safer against sudden power loss.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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