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that additional capacity. IFA features are ordered separately and are distinguished
at the hardware level from any Internal Coupling Facility (ICF) processors,
Integrated Features for Linux (IFLs), and System z9 Integrated Information
Processor (zIIPs).
z/VM 5.3 can run in a logical partition that includes zAAPs and can dispatch z/OS
guest virtual zAAPs on the real zAAPs. z/VM 5.3 can also simulate zAAPs for z/OS
guests, dispatching virtual zAAPs on real general-purpose processors (CPs).
IBM System z9 Integrated Information Processor (zIIP)
The IBM System z9 Integrated Information Processor, or zIIP, is the latest
customer-inspired specialty engine for System z9. It provides a cost-effective DB2
workload redirection environment. The zIIP is designed to help improve resource
optimization and lower the cost of eligible workloads, enhancing the role of the
mainframe as the data hub of the enterprise.
The IBM zIIP's execution environment will accept eligible work from z/OS V1.6 or
1.7, which will manage and direct the work between the general purpose processor
and the zIIP. DB2 for z/OS V8 will exploit the zIIP capability for eligible workloads.
IBM zIIPs are designed to free up general purpose capacity which may be utilitized
by other workloads.
In addition to improving the utilization of existing System z9 resources, the zIIP may
help you to leverage the z/OS and DB2 for z/OS qualities of service for data access
and information management across your enterprise. It does this by making direct
access to DB2 more cost effective and potentially reducing the need for many local
copies of the data and the complexity that brings.
On System z9 models, you can purchase and install one or more Integrated Facility
for Applications (IFA) features with no effect on the model designation.
Consequently, no additional IBM operating system or middleware charges are
incurred with the addition of this capacity unless that software is actually running in
that additional capacity. IFA features are ordered separately and are distinguished
at the hardware level from any Internal Coupling Facility (ICF) processors,
Integrated Features for Linux (IFLs), and System z9 Application Assist Processor
(zAAPs).
z/VM 5.3 can run in a logical partition that includes zIIPs and can dispatch z/OS
guest virtual zIIPs on the real zIIPs. z/VM 5.3 can also simulate zIIPs for z/OS
guests, dispatching virtual zIIPs on real general-purpose processors (CPs).
Concurrent Patch
Concurrent patch is available on all System z9 models. It is possible to apply BPC,
UPC, support element (SE), Hardware Management Console, channel Licensed
Internal Code (LIC), LPAR, coupling facility control code, I390, and PU patches
nondisruptively and concurrent with system operation. There can still be situations
where a small percentage of patches are disruptive; however, with all System z9
models, all major LIC components now support concurrent patch.
Additionally, there is also support for multiple EC streams (one per major LIC
component) further minimizing the number of disruptive patch sessions. On
previous models, a single EC stream contained all major LIC components and
provided a mandatory sequence for patch application. This could lead to situations
where a disruptive patch belonging to one LIC component, for example, PU, could
Chapter 2. Planning Considerations
2-61
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