A useful report on DRaaS spotted in Computer Weekly. Whilst I absolutely agree with the headline, you may find that if you have large-scale complex IT, DRaaS based purely on a software recovery product may not work for you especially if you have "mature" IT assets. Some of these mature assets may do all the grunt work that all your other apps depend on. So it effectively constrains your recovery performance. So the solution to this problem is not a product. What's needed is one or two services combined to deliver  a solution. So far I haven't found one "product" that recovers a complex environment.

My final point is DRaaS in auto failover can replicate malware straight into your recovery environment. One way to avoid this is to rebuild your IT in a  data centre that's not connected to the internet so you can "scrub" your IT clean from malware before connecting it back to your business.