Closed maxcuttins closed 7 years ago
Hi, The kernel mode is the fastest but XenServer dom0 has a pretty old kernel and doesn't support all features of last Ceph releases. http://docs.ceph.com/docs/master/start/os-recommendations/ The rbd-nbd and rbd-fuse support all features but rbd-fuse is slower then rbd-nbd so it was decided to use rbd-nbd. https://github.com/rposudnevskiy/RBDSR/issues/4
Very good news. Then i don't need to issue:
ceph osd crush tunables bobtail
to let it work on XenServers?
.... wow!
I'm not aware about the diff between these 2 devices. Then why nbd default and not kernel?
Is it a choice based on performance?