That is an easy one.....software charges. To my knowledge, there are no software charges for zAAPs or any other speciality engine other than the IFL.
So two IFLs, the software is charged for two engines. One IFL and one zAAP, the software charge is for one engine. Of course the free hardware upgrade for existing IFLs when going from a z/890 to a z10 BC (about triple the IFL speed, or double when coming from a z9 BC), is a great benefit. Of course the zAAPs got faster too. Now that zVM 5.4 can schedule multiple types of engines in the same LPAR, perhaps the code base is there for eventually allowing VM based, or Linux based JAVA to be scheduled on a zAAP. But then, $47,500 for an IFL (z10 BC)..... Tom Duerbusch THD Consulting >>> "A. Harry Williams" <[EMAIL PROTECTED]> 10/22/2008 9:37 PM >>> On Wed, 22 Oct 2008 16:04:40 -0400 David Boyes said: >> > times earlier, if you want JAVA support "on VM", you should install >a >> > Linux guest and use the up-to-date levels on there. >> Java itself is a virtual machine. Maybe a z/Java guest someday? >Would be a clever way to actually make the zAAP specialty engine useful >to a z/VM system. Someone would have to write a Java operating system, >and I don't know if the zAAPs can actually do I/O. Still, SET MACHINE >JAVA would be interesting. Except that the zAAP would only be relevant if you already had one you no longer needed. An IFL and a zAAP are marketing devices, but the same Java code will run at the same speed on an IFL as a zAAP on the same box, so why would you want a zAAP on a box that has an IFL?
