I know this post is a little old...
But just a heads up, OVH is a terrible place to host a witness, many witnesses have learned this the hard way.
Steemd is reliant on stable network connectivity 24/7, with not so much as a minor blip. OVH cannot provide that (there are plenty of budget hosts that can, but not OVH).
At @privex we offer servers which are safe to use for witnessing, and even back our claims with an SLA. Of course there are many others to choose from, and I'm sure as someone experienced in High Availability you probably already have servers with many other providers.
You might not notice these issues until you get into the top 50, but OVH are most definitely problematic for STEEM systems as @klye and @themarkymark can confirm.