In an iHub system, the concept of a master node no longer exists. Any node in a cluster has the ability to modify the shared server configuration file. The node performing these operations typically depends on which node the system administrator uses when connecting to iHub System through an administration console.

In releases prior to Release 11 Service Pack 1, iServer used multicasting to broadcast event information and synchronize operations in a cluster. Some cloud computing environments do not support multicasting. iHub uses the third-party RDBMS as a shared repository for storing cluster information. This enhancement replaces multicasting as a way of managing cluster information.