While Static Clusters can be used to handle very large sites, they do not meet the carrier-grade uptime requirements.
Managing a set of loosely-coupled Server also becomes a problem as the number of Server grows.
The CommuniGate Pro Dynamic Clusters address these challenges. They exceed the "five-nine" (99.999%) uptime requirements, and their Single Service Image infrastructure allows System and Domain administrators manage a large Cluster System in the same way a smaller single-server CommuniGate Pro system is managed.
The main difference between Static and Dynamic Clusters is the Account hosting. While each Account in a Static Cluster has its Host Server, and only that Server can access the Account data directly, all Backend Servers in a Dynamic Cluster can access the Account data directly.
The most common method to implement a Dynamic Cluster shared Account Storage is to employ File Servers or Cluster File Systems. See the Storage section for more information about Shared File Systems.