Folks, Thanks for the various suggestions and inputs. I guess I still need to figure out a bit before finalizing my new design. Some answers from me follows.
> you could just install your application via RPMs? ANSWER: Not possible because the app is provided by a third party vendor in tgz format and the actual app install is done by the app guys. > You can also try OCFS2... that is another clustered FS. ANSWER: Will look into this. Thanks. > If one is going to look at DRBD, then I would strongly consider GFS2 instead, > for NFS failover, especially for supportability. And if you're looking there, > then just using GFS2 itself is now a re-consideration (without NFS). ANSWER: Due to the nature of my HW (Blades), DRBD seems a bit complicated. > GFS2 aggregate data transfer can exceed Ext3 performance, if deployed > correctly > and depending on the SAN topology, leveraging it's multiple nodes. If GFS2 > gets > bogged down in meta-data operations and RHCS multicast traffic over the > Ethernet, that's where most have issues. > > I've run into a few cases where binaries are written quite improper, and lock > files in their respective trees, causing wholly unnecessary overhead between > nodes. That's why I'm a fan of read-only NFS for sharing binaries, avoiding > the > issues of locking. It's compounded by the fact when people use the same GFS2 > file system for all sorts of other operations (data, temporary, etc...) and > don't consider their actual usage of the file systems. > P.S. There's no law that one has to use GFS2 or NFS, but not both, on a > system. I've seen an allergy to doing such for a reason I still don't > understand. Same deal with Ext3, Ext4 and/or XFS on the same system, one can > have multiple file systems in use. ANSWER: Bryan, do you mean it is not a good idea to have both NFS and GFS2 running at the same time? e.g. /app partition mounted through GFS2 file system and /home through NFS? Is it better going GFS2 for both /app and /home? A rather crazy question but if the consensus is that GFS2 is not up to snuff for production, what is it good for? I currently have a shared disk group on the SAN and out of my N+1 servers, N number of servers mount the partition as Read-only and the remaining server mounts it as Read-write. Any time updates are required, it is done through that server. Cheers, Win _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
