Building Disaster Recovery Serviceguard Solutions Using Metrocluster with EMC SRDF

Site failure
A site failure is a scenario where a disaster or an equivalent failure results in the failure of all the
nodes in a site. The Serviceguard cluster detects this failure, and reforms the cluster without the
nodes from the failed site. The Site Controller Package that was running on a node on the failed
site fails over to an adoptive node in the remote site.
When the remote site starts, the Site Controller Package detects that the active complex-workload
packages have failed and initiates a site failover by activating the passive complex-workload
packages that are configured in the current site.
The disaster recovery complex workloads that have their active packages on the surviving site,
where the cluster reformed, continue to run without any interruption.
60 Understanding Failover/Failback scenarios