More documentation for this product is available at
http://www.suse.com/documentation/sle-ha-geo.
For example, the Geo Clustering Quick Start guides you through
the basic setup of a Geo cluster, using the Geo bootstrap scripts
provided by the ha-cluster-bootstrap
package.
A document with detailed information how to on data replication via
DRBD across Geo clusters has been published in the SUSE Best Practices
series:
http://www.suse.com/documentation/suse-best-practices/sbp-drbd/data/sbp-drbd.html.