We know that our customers would like Novell's guidance on this. We are starting to articulate use cases that would provide a reference for customers of both GroupWise and OES2 on Linux when deciding which file system to use: NSS, ext3 or Reiser. We think that with the upcoming release of OES2 SP1 and Bonsai, it's a good time to get this down on paper (or up on a wiki) and out to our customers.
Please keep your eyes open for that in the near future.
Regards, Jason Williams & Alex Evans