Disaster Tolerance and Recovery in a Serviceguard Cluster
Evaluating the Need for Disaster Tolerance
line inoperable as well as the computers. In this case disaster recovery would be moot, and local failover is probably the more appropriate level of protection.
On the other hand, you may have an order processing center that is prone to floods in the winter. The business loses thousands of dollars a minute while the order processing servers are down. A disaster tolerant architecture is appropriate protection in this situation.
Deciding to implement a disaster recovery solution really depends on the balance between risk of disaster, and the vulnerability of your business if a disaster occurs. The following pages give a
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