I think you're confusing LPARS with guests under z/VM. A mainframe LPAR is a coarse-grained (relatively speaking) partitioning of the system. LPARS are created

I think you're confusing LPARS with guests under z/VM. A mainframe LPAR is a coarse-grained (relatively speaking) partitioning of the system. LPARS are created and managed by a Hardware Management Console (HMC), and run on PR/SM [0]. No one creates mainframe LPARS to run a VPS. Those would simply be a guest under z/VM. Realistically speaking, z/VM would be running in an LPAR (less than the whole of the mainframe resources) and then within z/VM's LPAR, z/VM hypervisor allows all of its guests to run concurrently. [0] https://wiki.alquds.edu/?query=PR/SM https://wiki.alquds.edu/?query=PR/SM