The exact error is qemu-img: Unknown protocol 'gluster://test1:/vmstore/testvm I don't think is is related to the backing file system, I think it is more of some sort of incompatibility with qemu-img and GlusterFS. But for completeness sake the backing file system is ext4. I can't create an image so I don't am not sure what the cache mode is. Thanks, _ /-\ ndrew On Mon, May 13, 2013 at 8:05 PM, Jacob Yundt <jyundt at gmail.com> wrote: >> However when trying to create the image with qemu-img create I get an unknown protocal error. > > What errors are you getting? > > What cache mode are you using for qemu images? > > What is the backing filesystem on your gluster bricks? [ext4, xfs, etc] > > I'm troubleshooting a problem > (https://bugzilla.redhat.com/show_bug.cgi?id=958781) with xfs backed > filesystems + KVM/qemu and I'm wondering if you are getting the same > errors. > > -Jacob -- _ /-\ ndrew Niemantsverdriet Linux System Administrator Academic Computing (406) 238-7360 Rocky Mountain College 1511 Poly Dr. Billings MT, 59102