I'm configuring a 4 node Oracle VM environment. One management server, two vm servers and a storage server with direct attached storage.
The storage server is running Linux and I thus have the option of providing the shared storage for the VM servers on iSCSI (with OCFS2) or NFS.
Is it likely that one would perform better or more reliably than the other? Any other things one should take into consideration when deciding between the two?
Note that Oracle VM is the Xen based virtualization product from Oracle, not a generic term for virtualized Oracle databases.