The goal is to refactor current fencing flow to make it more transparent and configurable. The main goals will be:
1) Define unqiue interface to all fencing flow steps (SSH Soft Fencing, Kdump detection, hard fencing, ...)
2) Make each step easily configurable
3) Refactoring fencing flow code to make more understandable
More info will be posted later to feature page.
oVirt 3.6.0 has been released on November 4th, 2015 and should fix this issue.
If problems still persist, please open a new BZ and reference this one.