what filesystems are people using in stable clusters?

 I've only ever managed to get oM stable on my SMP Opteron hardware with
2.4.22-om20031215 and ext3 filesystems.  When I've tried other kernel
versions, I've also tried other filesystems, like JFS or reiserfs.  Maybe
they aren't very stable with oM?

 Anyway, what I really want to know is if anyone has a stable oM cluster on
SMP hardware using a filesystem other than ext3.  Esp. if it's with a 2.4.22
kernel.

 My Opterons have 2GB of RAM each, but the master nodes have 4GB and
6GB of RAM in my two clusters.  Moshe has said that oM doesn't support
HIGHMEM_64G, so I guess 2GB will be going to waste on the 6GB machine.
(right now, the machines bought as master nodes aren't part of the oM
clusters, because of hardware support in 2.4.22 kernels;  They run non-oM
2.6 kernels and NFS export filesystems to their clusters.  I've been saying
I would do something about that RSN, and this time for sure :)

-- 
#define X(x,y) x##y
Peter Cordes ;  e-mail: X(peter@cor , des.ca)

"The gods confound the man who first found out how to distinguish the hours!
 Confound him, too, who in this place set up a sundial, to cut and hack
 my day so wretchedly into small pieces!" -- Plautus, 200 BC


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