These are solved problems though. RAID works great around 99% of the time and for the others you can use off-site backup. It's extremely rare that something nee

These are solved problems though. RAID works great around 99% of the time and for the others you can use off-site backup. It's extremely rare that something needs a true 100% uptime. Salesforce and Reddit still go down for maintenance windows in 2017. For one project I setup log streaming with Postgres to the cloud(since inbound BW is free :) ) and ran a hot backup there just in case. Really though in my experience the cloud is far less reliable than colocation. I've had AWS VMs "degrade" or randomly die countless times but I can't remember the last time my Colo boxes went down, probably not since I last upgraded the OS.