On Tuesday, 11/25/2008 at 10:33 EST, "Kline, Martin" <[EMAIL PROTECTED]> wrote: > > 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.
The folks in IBM-MAIN told you to mark them "not accepted", not "not supported", and that was assuming the VM system didn't need those volumes. (Some folks try to bring z/VM up in a formerly-z/OS LPAR with tons of I/O gear VM shouldn't be touching.) Yes, z/VM supports PPRC. It is prevalent in those who cover z/VM volumes using GDPS, with SA390 and SA For Linux. GDPS can provide I/O failover for z/VM volumes. The SA Linux piece handles the error detection, communication with SA390, and the CP HYPERSWAP command at the right times. Alan Altmark z/VM Development IBM Endicott
