It's not enforced. But, the cost of non-compliance may bankrupt some businesses, so it is best to follow the rules.
The IFL is designed to offload z/VM and Linux workload to a separate set of engines so that the workload doesn't interfere with the standard engines (the same theory applies to the zAAP). Upgrading the standard engines is significantly more expensive (for hardware and software) than upgrading the IFL(s).
The IFLs are segregated into a separate LPARs so that software vendors can be certain that they will not be brought online to z/OS (which will not IPL with an IFL in the engine mix).
Tom Duerbusch wrote:
Well, duh...but how is it enforced?
And if it is based on our honor, why have an engine type of IFL or Zaap? Let me give my word that these two engines are in this LPAR and only running xxxx software and these engines are in this LPAR and only running yyyy software.
Tom Duerbusch THD Consulting
Rich Smrcina wrote:
As long as you have a license for any engines that the software is running on, whether they be IFLs or standard.
Tom Duerbusch wrote:
OK, sure you buy an IFL and have per engine pricing for software over there. Great.
What prevents us from also running "per engine" based priced software on the s/390 engines?
I'm not talking about z/VM per say, but Websphere, Oracle, DB2/UDB etc.
Not that there will be many mips available in the white space on the 390 side, compared to 366 MIPS on the IFL, but just how is this figured out?
Tom Duerbusch THD Consulting
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