Shared Internal Coupling Facility

Concurrent upgrade can be used to add a PU to a shared pool of PUs supporting existing Internal Coupling Facilities. In the following example, Partition 1 is defined for the ability to be upgraded dynamically. To prepare for this ability, simply define Partition 1 as a seven-way shared partition with six initial and one reserved logical cores (see Figure 1 for a similar example). At the time of the concurrent CP upgrade, the CF operator command can be used in Partition one shared partition to configure a seventh ICF processors online to the shared partition without interruption to any logical partition. Partition 2 in this case could have also been defined as a seven-way shared ICF partition with one ICF configured offline. This would allow Partition 2 to grow concurrently without an outage as well.