On Wednesday, 06/04/2008 at 10:38 EDT, "Wandschneider, Scott" <[EMAIL PROTECTED]> wrote: > In other words there is no way to remove a CPU without an IPL - is that > correct?
Correct. To add/remove CPUs dynamically requires use of specific z/Architecture that allows that to occur, but CP doesn't virtualize that architecture. It would be highly inappropriate to rip a CPU out from under a system without telling it the CPU is leaving/gone. So, we reset the guest to avoid any potential for "unpredictable results". We do know that it would be a Good Thing to have that capability so that a guest could shrink or grow its CPU consumption as the number of CPUs in the LPAR shrinks or grows. Alan Altmark z/VM Development IBM Endicott
