Planning host interface connections

Plan network interface connections for OpenShift nodes based on node type and storage network requirements.

OpenShift nodes can be separated into following three types:

  • OpenShift control plane nodes
  • OpenShift worker nodes
  • Fusion Data Foundation storage nodes

Each type requires different connections to the storage cluster as follows:

  • All OpenShift nodes require access to the OpenShift machine network
  • Control plane nodes do not require any connection to storage networks
    • If Fusion Data Foundation PVCs are needed on control plane nodes (not recommended), treat them as worker nodes
    • If control plane nodes are used as Fusion Data Foundation storage nodes, treat them as storage nodes
  • Worker nodes run Ceph-CSI driver daemons to mount PVC storage to Pods and therefore require a connection to the Fusion Data Foundation public network (if used)
  • Storage nodes require access to all used storage networks