On Jul 04, 2008 17:27 +0200, Papp Tamas wrote: > Brian J. Murrell wrote: > > On Fri, 2008-07-04 at 16:34 +0200, Papp Tamás wrote: > >> Is it possible to duplicate some files or files in a directory on > >> nodes, or something like that? > >> > >> > >> So if I write a file make it available on node1 and node2, if node1 is > >> died, I can find it on node2. > > > > Your question is not making much sense to me. Let me say that Lustre is > > a distributed filesystem. All files are available to all (client) > > nodes. > > I'd like this from > http://osdir.com/ml/file-systems.lustre.user/2007-12/msg00010.html: > > >/> Is it possible to configure Lustre to write Objects to more than 1 node / > >/> simultaneously such that I am guaranteed that if one node goes down that / > >/> all files are still accessible?/ > >/ That's called RAID, and right now, no. It's on the roadmap though./ > > Is it available already. Can I check the roadmap somewhere? On clusterfs.com > it was accessible easily, but on sun.com I don't find it.
The Server Network Striping project has been put on hold, due to complexity of the design required to allow asynchronous writes to work with RAID-5/6 type layouts (data + parity). There has been some discussion about implementing only RAID-1 (mirroring), but whether that becomes a feature that is implemented depends on how many customers are interested in using RAID-1. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
