[H-GEN] ext2 or ext3

Robert Kearey mammal at optushome.com.au
Wed Jun 19 19:27:22 EDT 2002


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Jason Henry Parker wrote:

> Some of the ext3 changelog messages are *truly* scary.

That's what happens when Dave Miller does stuff - his changelogs are 
brutally honest. This is a *good* thing.

> XFS has been
> around for a *long* time and beyond the added complexity (though to be
> honest I don't recall if XFS or LVM was more complex) I can't see any
> reason to use ext3 instead of it.

Well, there is the fact that with ext3 you don't need to destructively 
reformat your filesystems, and (if you're using Red Hat) use an 
unsupported kernel. It's not something that I could reccomend lightly. 
XFS on linux is also missing a lot of the Sexy Features.

XFS is an extremely invasive kernel patch, and that does matter to a lot 
of people.

>>One the whole though, I think that making use of a journalled
>>filesystem, if available is a good idea.

> I don't think journalling is necessarily useful in all situations, and
> in any event most journalled FSes only journal metadata, so I'm unsure
> of the utility.  Suggestions, anyone?

Of course it's always useful, in the sense that a bit of extra padding 
near your safety net is useful. There's no One True Thynge that will 
garauntee data security and integrity - like most things with system 
administration, that's a process, not just a particular technology.

Jason, did you look at the whitepaper I posted previously? ext3 can 
journal in all sorts of ways:

http://www.redhat.com/support/wpapers/redhat/ext3/tuning.html#journaling

-- 
Rob K - Ich mag Chips mit brauner Soße
http://members.optushome.com.au/mammal
Please abbreviate 'bandwidth' as 'bndwth'
thereby conserving precious bndwth.


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