Verified and Tested 1/20/16
This how-to will help walk you through adding LVM to DRBD. Distributed Replicated Block Device (DRBD) is a block level replication between two or more nodes and is used as a replacement for shared storage by created a networked mirror. DRBD is used in environments that require systems or data to be Highly Available.
* Two servers running Debian GNU/Linux Distribution. Other versions of Linux will work as well, but the installation packages may be different. If you need a server, you can spin up a fast and reliable cloud hosting server from Atlantic.net in under 30 seconds.
* Both servers should be directly cross-connected together, or have a separate Network Interface for private communication.
* Both servers should have the same partitioning. This walkthrough assumes that both systems have a single /dev/sdb device that is going to be used as the