On Mon, May 13, 2013 at 9:10 AM, Harald Rößler <Harald.Roessler@xxxxxx> wrote: > > Hi Together > > is there a description of how a shared image works in detail? Can such > an image can be used for a shared file system on two virtual machine > (KVM) to mount. In my case, write on one machine and read only on the > other KVM.Are the changes are visible on the read only KVM? The image is just striped across RADOS objects. In general you can think of it behaving exactly like a hard drive connected to your computer over iSCSI — a proper shared FS (eg, OCFS2) will work on top of it, but there's no magic that makes running an ext4 mount on two machines work... -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html