Run XFS without write caching and you should be safe. Are you creating
thousands of files?
The main stress on this system will be as a media server (mythtv and
some other things.) So, no, files will be fewer and larger. Are you
talking about write caching on the 3Ware? As I said, without it the
system become unresponsive during large writes.
XFS is the best for long concurrent writes...so if you are not too
concerned about losing data in a crash (or get battery power backup for
your 3ware cards and the more cache for your card you have the better)
but do you also expect a lot of reading while during your writes? Then
jfs might be better.
See http://untroubled.org/benchmarking/2004-04/2.6.5-gentoo/
You can also use the framework at
http://untroubled.org/benchmarking/2004-04/fsbench.tar.gz and customize
it for your own testing.
Main site for that is http://untroubled.org/benchmarking/2004-04/
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