Hi! On Sat, Aug 29, 2009 at 11:56:40AM -0600, Lee Ward wrote: > NFS4 addresses those by: > > 1) Introducing state. Can do full POSIX now without the lock servers. > Lots of resiliency mechanisms introduced to offset the downside of this, > too.
NFS4 implementations are able to handle Posix advisory locks, but unlike Lustre, they don't support full Posix filesystem semantics. For example, NFS4 still follows the traditional NFS close-to-open cache consistency model whereas with Lustre, individual write()s are atomic and become immediately visible to all clients. Regards, Daniel. _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
