On Fri, Jul 11, 2014 at 1:32 PM, Alan Altmark <[email protected]> wrote: <snip> > You were correct when you said that the specific values are not > documented. The values are there to enable correlation between the > various SYSIBs that are type-oriented. > > But it's the question itself that disturbs me. What would software (as > opposed to a licence agreement) do with explicit information about CPU > type? The capacity of an IFL is the full capacity of the process type, > without regard to model. That is, it is unaffected by the subcapacity > constraints placed on the CPs.
I would _guess_ that the vendor want to be able to say, for some reason, my software can be licensed: (1) on an IFL only; (2) on a CP only; or (3) on either an IFL or CP. In the first two cases, I guess the software would have a subroutine which "mysteriously malfunctions" if run on the wrong type of processor. I have no idea why most vendors would care. z/OS cares only so that it can report to the user (and maybe vendor) how much of which specialty engine is being used. I can, somewhat, understand why they could care about capacity. You want more capacity, you pay more money. That is now well entrenched in the z world, and becoming more entrenched in the other architectures (usually by "power/value units" or "cores"). On z/OS, it is even possible to pay by MSU. But it tends to be by the maximum MSU used by the entire z/OS workload, and not just the MSUs used by the software in question. > > And I suspect that keeping software vendors from going down this road is > why the processor type information is, shall we say, obscure at best. > > Alan Altmark > > Senior Managing z/VM and Linux Consultant > IBM System Lab Services and Training > ibm.com/systems/services/labservices > office: 607.429.3323 > mobile; 607.321.7556 > [email protected] > IBM Endicott > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ -- There is nothing more pleasant than traveling and meeting new people! Genghis Khan Maranatha! <>< John McKown ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
