Hardware structure

The following image contains the basic HW structure as prerequisite for cluster functions:

• 2 SE Servers
• ISL-E connections between the 2 SE Servers
• Configuration disks which are accessible through SAN from all units on which they are needed.

This is the basic HW structure for the following cluster functions:

• Management Cluster (SE Cluster)
• SU /390 Cluster (SU Cluster with SU /390)
• SU x86 Cluster (SU Cluster with SU x86), where the two SU x86 are located in different SE Servers.
  (An SU x86 Cluster is also possible server-internally and doesn't need server-external network connections in this case.)