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.

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IBM z/OS manual OS.e, ZSeries Application Assist Processor