Advantages of Active Cluster
Active Cluster helps IT organizations provide:
• High availability
• Scalability
• Reduced RPO (Recovery Point Objective) and RTO (Recovery Time Objective)
High Availability
High availability in Active Cluster is achieved by ensuring that all TDV cluster nodes are redundant: if any node fails or is removed from the cluster, the remaining nodes continue servicing requests without administrative intervention.
Active Cluster provides:
• With properly planned clusters, active/active clustering achieves 99.999% availability. Because all nodes are identical, traffic intended for a failed node can be automatically passed to another node.
• When a failed node comes back on line, it automatically rejoins the cluster and is resynchronized.
• All nodes are notified of node failures.
You can view the status of the Active Cluster and its members in the Manager Web interface. If a cluster node is out of sync with the other nodes, Active Cluster offers options for resolving the issue.
Scalability
Active Cluster helps your organization scale the TDV environment on demand, based on changing requirements:
• You can dynamically add cluster nodes to address increased load.
• Cluster nodes are automatically synchronized to maintain identical metadata.
• The cluster, available through a load balancer, appears to clients to be a single server.
Reduced RPO and RTO
Active Cluster helps to ensure that your RPO and RTO objectives are met. With Active Cluster:
• Repository can be enabled for HA/DR (High Availability/Disaster Recovery) through native or third-party capabilities.
• Migration and recovery of metadata occurs automatically, minimizing impact on TDV.