Multus cluster network

The cluster network architecture partially achieves Multus benefits by dedicating a network for replication and recovery traffic.

The following diagram shows the cluster network architecture for a Fusion Data Foundation deployment using Multus cluster network:

In the cluster network architecture, Multus benefits are partially achieved. The cluster network takes the replication and recovery roles. The OpenShift Pod network takes the role of handling storage I/O from applications. This ensures noisy-neighbor interference is minimized, but application I/O can still be affected by other application networking, and vice versa.

Application I/O to the storage system is expected to have higher latency than other Multus architectures due to the software-defined Pod network. Similarly, the storage network is not isolated from applications. For example, a privileged Pod could still snoop storage traffic.