Just wondering how many providers out there require A/B power, and for those that do, is there any consideration to the infrastructure behind whether it's truly A/B?
For enterprise level and other uptime reliant customers it can be very important to have true A+B redundant power. We provide this at our 350 E Cermak location and it is a big selling point for the location.
In addition to colocation service plans, we also offer high availability dedicated servers out of 350 Cermak which take advantage of our 2N infrastructure. High availability dedicated servers add: redundant power supplies, 2N redundant power, and fully redundant public and private network ensuring there is no single point of failure outside of the server.
Our Enterprise customers won't even consider a datacenter location without A+B power. It is a bare minimum requirement.
That said, we make sure to visit the site, inspect the power lines coming in (from a distance, of course). It is one of the most critical, basic, and important aspects of a DC choice.
Each A and B feed to maintained regularly so at the time one feed will switched off.
Generally Data center has two diversified input power.
In case of shut down in one feed then automatically the other will work.
If suppose two power connection is down then ups and generator will give back up.