I tried to do a wrong thing: from host test004 qemu-img convert -f qcow2 squeeze.qcow2 sheepdog:squeeze At this moment, vdi data is only on test004 because of the cache. from host test005 qemu -name squeeze -enable-kvm -drive file=sheepdog:squeeze,cache=writeback -m 512 -smp 2 ... >From what I saw, the guest starts while the cache is getting flushed. This lead to I/O errors. Even tough it's not the right procedure, is it possible to make sheepdog 'pause' (kill -STOP) the qemu process till vdi cache is fully flushed? |