IBM z/OS Software pricing models designed to support on demand reality, IBM, Reference Guide, zSeries 890 and z/OS, LPAR CPU Management Dynamic Channel Path Management Channel Subsystem Priority Queuing

• Software pricing models designed to support on demand reality

z/OS 1.6 is the ﬁ rst release of z/OS that requires the

z/Architecture. This release will only run on zSeries servers

(z890, z990, z800, z990) or equivalent servers.

z/OS.e

z/OS.e is unique for the z800 and z890 providing select

function at an exceptional price. z/OS.e is intended to help

customers exploit the fast growing world of on demand

business by making the deployment of new applications

on the z800 and z890 very attractively priced.

z/OS.e uses the same code base as z/OS with custom

parameters and invokes an operating environment that is

comparable to z/OS in service, management, reporting,

and reliability. In addition, z/OS.e invokes zSeries hard-

ware functionality just as z/OS does. No new z/OS skills

and service procedures are required for z/OS.e.

For more information on z/OS.e see the

IBM

zSeries 890 and z/OS

Reference Guide

Intelligent Resource Director

Intelligent Resource Director (IRD) is a key feature of the

z/Architecture which extends the Workload Manager

to work with PR/SM on zSeries servers to dynamically

manage resources across an LPAR cluster. An LPAR

cluster is the subset of the z/OS systems that are running

as LPARs on the same CEC in the same Parallel Sysplex.

Based on business goals, WLM can adjust processor

capacity, channel paths, and I/O requests across LPARs

without human intervention.

IRD assigns resources to the application; the applica-

tion is not assigned to the resource. This capability of a

system to dynamically direct resources to respond to the

needs of individual components within the system is an

evolutionary step. It enables the system to continuously

allocate resources for different applications, and this helps

to reduce the total cost of ownership of the system. IRD is

made up of three parts that work together to help optimize

the utilization of zSeries resources:

• LPAR CPU Management• Dynamic Channel Path Management• Channel Subsystem Priority Queuing

The z/OS Intelligent Resource Director (IRD) Planning

Wizard helps to plan your IRD implementation by asking

questions about your enterprise setup, and produces a

worksheet that describes the issues on each of your sys-

tems that you must consider before you can implement

IRD. The z/OS IRD Planning Wizard supports z/OS 1.2 and

higher.

zSeries Application Assist Processor

The IBM ^ zSeries Application Assist Processor

(zAAP), available on the z990 and z890 servers, is an

attractively priced specialized processing unit that pro-

vides an economical Java execution environment for z/OS

for customers who desire the traditional qualities of service

and the integration advantages of the zSeries platform.

When conﬁ gured with general purpose processors within

logical partitions running z/OS, zAAPs may help increase

general purpose processor productivity and may contrib-

ute to lowering the overall cost of computing for z/OS Java

technology-based applications. zAAPs are designed to

operate asynchronously with the general processors to

execute Java programming under control of the IBM Java

Virtual Machine (JVM). This can help reduce the demands

and capacity requirements on general purpose proces-

sors, which may then be available for reallocation to other

zSeries workloads.