Re: RAID needs more to survive a power hit, different /boot layout for example (was Re: draft howto on making raids for surviving a disk crash)

[Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>]

On Mon, 4 Feb 2008, Michael Tokarev wrote:

> Moshe Yudkowsky wrote:
> []
> > If I'm reading the man pages, Wikis, READMEs and mailing lists correctly
> > --  not necessarily the case -- the ext3 file system uses the equivalent
> > of data=journal as a default.
> ext3 defaults to data=ordered, not data=journal.  ext2 doesn't have
> journal at all.
>
> > The question then becomes what data scheme to use with reiserfs on the
> I'd say don't use reiserfs in the first place ;)
>
> > Another way to phrase this: unless you're running data-center grade
> > hardware and have absolute confidence in your UPS, you should use
> > data=journal for reiserfs and perhaps avoid XFS entirely.
> By the way, even if you do have a good UPS, there should be some
> control program for it, to properly shut down your system when
> UPS loses the AC power.  So far, I've seen no such programs...
>
> /mjt
Why avoid XFS entirely?

esandeen, any comments here?

Justin.