I am installing z/VM for the first time in many years. We currently have a z/OS sysplex and want to put z/VM on some of the same DASD.
I followed the initial install, creating the res, page, spool and work volumes, then left the z/VM system up. The next morning the storage admins complained that all of their PPRC suspend and resume processing failed. Until z/VM was dropped, the PPRC functions failed. The solution recommended by several people on IBM-MAIN was to mark all of the PPRC devices 'notsupported' in z/VM. The documentation indicates PPRC is fully supported by z/VM and its guests, but if the support is that every PPRC device must be marked 'notsupported', I'd have to say that's a contradiction. Similarly, there is nothing in the documentation about having to do anything special when sharing DASD - such as marking the devices 'notsupported' - before starting z/VM. Researching the archives, it appears some people are successfully using PPRC with z/VM. Is anyone sharing PPRC volumes between z/VM and z/OS systems, and if so, what steps do I need to take?
