On Thursday, 07/20/2006 at 03:06 AST, "Edward M. Martin" <[EMAIL PROTECTED]> wrote: > We have a z890. z/VM 4.3 and VSE/ESA 2.6.1 > > We attempting to IPL from the VSE SA utility tape (under z/VM) > I get > HCP174E Paging I/O error; IPL failed > > Can anyone shield some light on this problem? > > The z/VM SA DSF/DDR tape works fine.
Ed, when you issue the IPL command, CP places the "IPL simulator" into your virtual machine. Well, before he does that he has to save the original memory contents of the affected pages so they can be restored after the IPL command has done its job. My guess is that your paging volumes have not been entirely CP formatted, yet are allocated as PAGE. Or, if you're sharing the volume with minidisks, you have an overlap or have not CP formatted the entire minidisk. Or the volume is going bad (unlikely). In any case, CP's I/Os are failing. There are probably error messages on the OPERATOR's console. Alan Altmark z/VM Development IBM Endicott
