On Sunday, 05/31/2009 at 05:11 EDT, Perry Ruiter <prui...@ca.ibm.com> wrote: > Having just spent the past several months of my life deeply immersed in all > thing SCIF, I can say Kris is right. When a guest issues a read, CP checks if > the guest's secondary is functional. If it is not, a CP READ is also made > pending. To be functional the secondary must be connected or, if disconnected, > must have an IUCV connection to *MSG or *MSGALL.
As an aside, using the *VMEVENT system service, you can watch for unexpected conditions like this and react before the 15-minute timebomb goes off. If you find that a disconnected guest has gone into CP READ, you can make yourself the secuser, send a BEGIN, and (maybe) recover, or at least scream for help while you hold the console. Alan Altmark z/VM Development IBM Endicott
