On Tuesday, 06/28/2011 at 10:06 EDT, David Boyes <dbo...@sinenomine.net> wrote: > > You will not find any published information on the mechanism. > > There is a tiny amount of information in the POP manual in the external > interrupt section on the original LPAR deactivation signal and what's supposed > to happen when it triggers, but the end comment is that the effect will be > "implementation dependent".
What POP are you looking at? I can't find any reference to LPAR deactivation. The only machine-dependent external interrupt I can find is "Service Signal" and that covers a lot of ground, notifying the OS of the completion of some previously requested machine function. The 9730/9221 used to reflect "now on batteries!" and "now on utility power!" via an external damage machine check. The logical response to "batteries!" would be to almost-but-not-quite shutdown and quiesce. That is, go into an enabled wait for "utility!" and then come roaring back to life with an almost-but-not-quite IPL. (The machine even had a published DIAGNOSE to cause the machine to power down.) Alan Altmark Senior Managing z/VM and Linux Consultant IBM System Lab Services and Training ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott
