[ Thanks to Falko
Timme for this link. ]
“This article explains how to set up an Active/Active
Samba CTDB Cluster, using GFS and DRBD. Prepared by Rafael
Marangoni, from BRLink Servidor Linux Team.“Introduction
“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.“1 Preliminary Note
“Linux Distribution:
“We are using the CentOS 5.5 (64bits) distribution, but will
probably work on Fedora (and Red Hat, for sure). The installation
of the CentOS is very simple and classical, select the base
packages and other stuff that you like/need. One issue that must be
remembered is that we use DRBD to replicate data between the nodes,
then you’ll need to have a disk or partition exclusive to DRBD.
Remember this before partitioning disks on CentOS
installation.”