On Thu, Feb 6, 2014 at 12:11 PM, Alexandre DERUMIER <aderumier@xxxxxxxxx> wrote: >>>Do the VMs using RBD images need to be restarted at all? > I think yes. In our case, we had to restart the hypervisor qemu-kvm process to enable caching. Cheers, Dan _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com