You just need a tech that knows what he is doing.
Our tech makes those deds stand up and sing.
ANYone that says they have a hosting company and has never experienced a problem is either:
new
small
lying
lucky SO far
Our technology is no where near advanced enough to prevent problems from springing up, be it a failed HD or a router, whatever. All you can do is try to have a backup in place and spare parts on hand.