I upgraded the Engine first and then tried one of the 3 nodes via the Manager WebUI. On reboot the node boots straight into emergency mode having timed out on the gluster volumes: Timed out waiting for device dev-disk-by\....... Dependency failed for /gluster_bricks/engine Same messages for vmstore and data01 If I edit /etc/fstab and comment out the gluster entries it boots into the oVirt node. The gluster pv is also not there: PV VG Fmt Attr PSize PFree /dev/sda3 ovirt_vg_sda lvm2 a-- <445.04g 21.48g Whereas the other 2 nodes have the following: PV VG Fmt Attr PSize PFree /dev/sda3 ovirt_vg_sda lvm2 a-- <445.04g 21.48g /dev/sdb gluster_vg_sdb lvm2 a-- <893.25g 0 Simon...