Redundancy - by definition - cannot be supplied by a single company.
Yes, your vendor may have their own redundant systems in place so that their internal problems don't become your problems. And that's nice. They should. But you always have a Plan B. And you always keep a local copy.
Yes, your vendor may have their own redundant systems in place so that their internal problems don't become your problems. And that's nice. They should. But you always have a Plan B. And you always keep a local copy.