Patent attributes
A high availability, scalable cluster server system for enterprise data management. The server is a cluster of two or more nodes. Each node runs one or more virtual servers. A virtual server consists of network resources and resources for enterprise data management. Failover is based on moving virtual servers from a failed node to a healthy node. The invention provides for network failover within the same node. Enterprise data management consists of data discovery, data categorization and applying enterprise policies on categorized data. One of the problems of data management is the diversity of policies and in some cases their conflicting requirements. According to one aspect of the invention, enterprise policies are broking into policy entities. Policy entities represent the simplest policy unit. Some of the policy entities are shared between the diversified enterprise policies. Identifying a data management policy with the highest priority and applying the policy entity that belongs to it resolve conflict in policy requirements.