RAID Rebuilds....
Not having RAID does not magically protect you from disk failures; you are still going to have significant rebuild workloads as the array tries to re-protect you from a failed disk. And once you factor in protection; that 50PB rapidly becomes 25PB or less; depending how many times you store that data.
Ceph is also not the core storage or even the core object store for OpenStack; something that Fujitsu were corrected on at the press launch. Yes, we do see it commonly implemented with OpenStack but it makes it sound like is part of OpenStack.
Biting the hand that feeds IT
