http://www.tierzero.com/what-we-do/t1/ When the occasional issue does arise, it is dealt with quickly and behind the scenes so that it does not interfere with our day-to-day operations. In fact, typically Tierzero will inform us they have noticed a problem and are addressing the situation -- and we were never aware of it due to redundancy built into the system. Follow us : https://goo.gl/Q8RWxV