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
2008-02-04T14:14:50Z

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.