MySQL Clustering with DRBD, Pacemaker, Corosync and Linux
A Little Theory
DRBD - DRBD refers to block devices designed as a building block to form high availability (HA) clusters. This is done by mirroring a whole block device via an assigned network. DRBD can be understood as network based RAID-1.
Corosync - The Corosync Cluster Engine is a Group Communication System with additional features for implementing high availability within applications.