All, I have a Distributed-Replicate volume served by 10 servers (Number of Bricks: 5 x 2 = 10). They are currently running CentOS 6 and I want to upgrade them to CentOS 7. I know there are several ways I could go about it, but I was wondering if there is a best-practice that alleviates down/rebuild time. All the best, Brian Andrus