On Tuesday, 07/31/2007 at 09:52 EDT, Marcy Cortes <[EMAIL PROTECTED]> wrote: > Interesting. I keep getting mixed messages from IBM. > > It sounds like you are talking about z/OS under z/VM?? I was talking > about z/VM itself in its own LPAR and its Linux guests but z/OS running > the show and just including some z/VM volumes that it could see in the > i/o gen. Linux does timestamp its i/o from what I was told but it was > still unclear whether on minidisks rather than full vols if it counted. > I was also told that VM has been engineered to do PPRC and not XRC and > to look at that solution instead (1800 miles makes that hard).
CP will pass the I/O timestamps to the hardware, even on a minidisk. Now, as to whether that "counts" as far as the controllers are concerned, I couldn't tell you. Alan Altmark z/VM Development IBM Endicott
