On Thursday, 08/17/2006 at 08:36 EST, Brian Nielsen <[EMAIL PROTECTED]> wrote: > That sounds like your HSA size was based on the actual defined devices, > not the maximum that can be defined. > > This makes me question the utility of the MAXDEVS parameter. Why would I > bother limiting the number of devices if it has no effect on the HSA size?
It certainly affects the size of the HSA *IF* that particular IOCDS is marked to allow dynamic updates. If you don't specify MAXDEV=, it defaults to the maximum number of devices allowed by the processor. That means your HSA will be as large as it can possibly be. In fact, you get a warning message from IOCP if you don't specify MAXDEV= on a dynamic IOCDS. If the IOCDS is not dynamic, then (a) you get a warning if you specify MAXDEV= and (2) the I/O portion of the HSA will be only as large as needed to hold the I/O config you coded, with no room for anything else. Alan Altmark z/VM Development IBM Endicott
