Set up a Samba CTDB Cluster with GFS, DRBD (CentOS 5.5)
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This article explains how to set up an Active/Active Samba CTDB Cluster, using GFS and DRBD. We use two nodes, both are active nodes, and the requests are loadbalanced. To replicate data between the nodes we use DRBD. To active/active cluster, we must use a ClusterFS (in this case GFS), to make the two nodes to write on the DRBD resource at same time.
