IBM announced the next generation of our leading workload optimization and consolidation system, the IBM zEnterprise™ System, on July 22nd. In addition to the enhanced scalability, performance, security, resiliency and availability, the zEnterprise System is a first-of-a-kind revolutionary workload-optimized multiplatform computing environment that spans and integrates mainframe and distributed technologies. Now customers will have the choice of running workloads on a "fit-for-purpose" architecture - zIFL, POWER, or x86. This system (of systems) consists of the IBM zEnterprise™ 196 (z196) and the IBM® zEnterprise™ BladeCenter® Extension (zBX) both managed by the IBM® zEnterprise™ Unified Resource Manager (Unified Resource Manager) to deliver one end-to-end virtualization and management solution.
While z/OS and z/VM use host licensing, the software running on zLinux on the z196 engines and on the zBX cores are licensed using Processor Value Units (PVUs). zLinux software running on the zEnterprise will require 120 PVUs per engine or IFL, which is how a core is defined on this system. Engine or IFL counts do not need to be adjusted to reflect the number of cores per chip as the engine or IFL count already reflects the proper core count.
The zBX portion of the system can include either Power7, x86 or both kinds of processor cores. The PVU values for these cores are the standard PVU values for these processor core types, which is 70 PVUs per core. With the Power7 chips, a processor is defined as a core, so the "processor" count does not need to be adjusted to reflect the number of cores on the chip (the count is already the correct number of processor cores). However the "processor" for an x86 Blade is defined as a socket, so this number must be adjusted for the number of processor cores on the chip to get the proper core count.
These PVU requirements reflect both the performance and the scalability available on the new zEnterprise z196. Customers using IBM software on these systems should see significant increases in their software price/performance over the systems they are likely to replace.
With this announcement IBM continues the practice of licensing to the processor core. This practice provides the licensing granularity customers require while offering the flexibility to configure their systems to best support their business objectives.
For a complete listing of processor technologies and their assigned PVUs, visit Processor Value Unit Licensing for Distributed Software.