Hi, one more followup to mine;
I'm considering to have diskless Xen DOMU cluster.
I recently #outed bogus ",NFS_BOOT_BOOTSTATIC" lines from i386/amd64 and they are now capable of doing NFS diskless with out-of-box DOMU. I believe diskless DOMU is a part of standard Xen usage. Enjoy. Toru Nishimura / ALKYL Technology