We are able to derive significant performance from the qemu block driver as compared to nbd/iscsi/nfs. We have prototyped nfs and nbd based io tap in the past and the performance of qemu block driver is significantly better. Hence we would like to go with the vxhs driver for now.
Ketan > On Oct 24, 2016, at 4:24 PM, Paolo Bonzini <pbonz...@redhat.com> wrote: > > > >> On 20/10/2016 03:31, Ketan Nilangekar wrote: >> This way the failover logic will be completely out of qemu address >> space. We are considering use of some of our proprietary >> clustering/monitoring services to implement service failover. > > Are you implementing a different protocol just for the sake of QEMU, in > other words, and forwarding from that protocol to your proprietary code? > > If that is what you are doing, you don't need at all a vxhs driver in > QEMU. Just implement NBD or iSCSI on your side, QEMU already has > drivers for that. > > Paolo
