See bug #1016461 for the complete description.
http://gerrit.ovirt.org/#/c/20036/ - backport to 3.3.0.1 http://gerrit.ovirt.org/#/c/19992/ - still under review, but http://gerrit.ovirt.org/#/c/19913 is enough to fix the regression .
http://gerrit.ovirt.org/#/c/19992/ - for future usage, more described in Bz 1017285, the second patch fixes the regression both for 3.3.0.1 and master.
Fixed, 3.3/IS20 Host with vdsm-4.13.0-0.5.beta1.el6ev.x86_64 Is working ok, with Storage And VMs Fixed, 3.3/IS20
oVirt 3.3.0.1 has been released.