Re: DR
"You could spread across several different clouds, across in-house and cloud, across in-house, externally-hosted and cloud. But a particular cloud is ONE point of potential failure."
Depends which cloud. Go to one of the big boys - AWS or Azure say - and you'll get a data centre network with the capability* for you to host and run your applications with proper and complete redundancy and fault tolerance built in. Go to one of the relative minnows who have been bought and sold by a bunch of VCs with costs stripped to the bone each time and you'll get what you pay for. For better or worse this whole sector is becoming like the big supermarket chains vs the Mom'n'Pop corner stores - the bigger guys do it mostly better and cheaper, but diversity dies.
* although they give you the capability to do it right, they're kind enough to let you do it wrong if you are so inclined, so you'll be just as vulnerable to this kind of failure unless you tick the right boxes on the web console too
Biting the hand that feeds IT
