z/OS can only run on a "full function" CP. It cannot run on an IFL. It will get a machine check (yes, I tried just out of curiousity). This is true if it is running in an LPAR or under z/VM.
The latest hardware and z/VM software allows for a single LPAR to have both CPs and IFLs assigned to that LPAR. You can then IPL z/VM in that LPAR. You then set up each guest in the LPAR to run either on a IFL(s) or GCP(s) or either. But still under the same single z/VM instance. On Wed, Apr 17, 2013 at 9:50 AM, Paul Gilmartin <[email protected]>wrote: > On Wed, 17 Apr 2013 07:42:08 -0500, Jon Butler wrote: > > > > ... > >Linux will run on either an IFL or a CP in native mode, or as a guest > under z/VM (which will run on a CP or IFL). > > > There's a related thread active on IBMVM. > > If z/VM runs on an IFL, can a z/OS guest run on that z/VM? > Are z/OS jobs on such a guest not eligible for specialty engines > restricted to using CPs? > > -- gil > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > -- This is a test of the Emergency Broadcast System. If this had been an actual emergency, do you really think we'd stick around to tell you? Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
