IBM United States
Software Announcement 202-203
September 3, 2002
IBM Tivoli Performance Modeler for z/OS Delivers Capacity Planning to Help Manage IBM zSeries and System/390
At a Glance
PC-based capacity planning and performance modeling for OS/390® or z/OS-based mainframe computers:
For ordering, contact:
Your IBM representative, an IBM Business Partner, or IBM Americas Call Centers at 800-IBM-CALL (Reference: LE001).
IBM Tivoli® Performance Modeler for z/OS is a PC-based performance modeling and capacity planning tool that runs on Windows® a new option for system management on the zSeries and System/390®.
In the S/390® environment, the primary benefits of PC-based performance modeling:
Performance modeling is now as portable as your PC or laptop.
With growing operating system complexity and the huge impact of responding to workloads, basic CPU utilization is no longer enough. Performance Modeler can model:
Performance Modeler enables you to plan for acceptable levels of computing while managing your IT costs. You define your acceptable limits on response times, level of workloads, and service available to the end user using:
Bottom line: With good data, you make better decisions.
By definition, a system is out of capacity when it can no longer meet the service commitments made to the end users. To properly predict when capacity needs increase, any capacity planning tool must be able to predict or model the impact of change on end-user performance. Multitier platforms and reliance on Internet, intranets, and extranets makes prediction very difficult. Capacity planning and performance modeling tools must consider all the components in the delivery of service. Systems programmers or operations professionals can use capacity planning or performance modeling tools to simulate the actual performance behavior of the mainframe computer. They can predict the output of these complex mainframe systems and also the impact of changing hardware or software. With this data, you can manage your zSeries or S/390 proactively.
After building and calibrating a baseline model, all results will be compared to that baseline. Changing configuration definitions is relatively simple.
Modeling techniques generally fall into one of two categories Simulation or Analytic. In some cases, hybrid models have been developed which use combinations of both techniques. The differences between these techniques are as follows. Analytic models consist of mathematical equations that describe the processes being modeled. Analytic models are used when the processes being modeled are well understood and can be described as mathematical expressions. Simulation models rely on running the actual process being modeled, but in a simplified form. Since these processes take place over time, simulation requires running (simulating) these processes over and over in order to reach a steady state that mimics the real process.
Analytic models are, by their nature, fast to run and require less processing power than simulation. Analytic models execute a number of mathematical equations and can run in seconds or less. Computer-based simulators must execute lots of instructions in order to simulate one point in time. Since simulators must model a period of time, many iterations must take place before the results are meaningful. This means simulators can run for an extended amount of real time, and use a larger amount of computer resources compared to analytic models. Simulators are used today to predict complex processes where analytic equations are not suitable. Some examples of these simulators are models that are used to predict weather and the presence of oil deposits. These models require large amounts of computer resources, but produce results that are not attainable with analytic techniques.
In the early days of mainframe computers, operating systems were simpler than they are today. Over time, features have been added and operating system complexity has grown. Older analytic models, which were developed to predict computer performance, have found it difficult to keep up with the changing nature and complexity of today's systems. Simulation models have a distinct advantage over analytic models when it comes to staying current. Simulators can be easily reprogrammed to model changes in the operating system as they occur.
It is a powerful tool in helping you analyze "what-if" scenarios. For example, it can model the effects of:
The input definitions are specified on three easy-to-understand screens:
As you build and calibrate your capacity planning model, you can capture numeric or text data. If you accumulate weekly reports, several weekly reports can be merged to produce a monthly report, and so on.
An output metric is the performance of each workload modeled:
Graphing Workload Performance:
While the simulator is running, you can see a graphical picture of
workload performance. You can choose up to four workloads from a panel
of 20 workloads to display in a continuously updated line graph.
Section 508 of the U.S. Rehabilitation Act
IBM Tivoli Performance Modeler is capable as of September 6, 2002, when used in accordance with IBM's associated documentation, of satisfying the applicable requirements of Section 508 of the Rehabilitation Act, provided that any assistive technology used with the product properly interoperates with it.
Product information will be available through Offering Information (OITOOL) at:
Hardcopy product publications are not shipped with this program. The IBM Tivoli® Performance Modeler Install/User Guide is softcopy and available on the product media.
The Publications Notification System (PNS) is available by order number/product number. Customers currently subscribing to PNS will automatically receive notifications by e-mail. Customers who wish to subscribe, can visit the PNS Web site location at:
The IBM Publications Center Portal:
The Publications Center is a worldwide central repository for IBM product publications and marketing material with a catalog of 70,000 items. Extensive search facilities are provided, as well as payment options via credit card. Furthermore, a large number of publications are available online in various file formats, which can currently be downloaded free of charge.
Note that PNS subscribers most often order their publications via the Publications Center.
Displayable Softcopy Publications: IBM Tivoli Performance Modeler for z/OS Install/User Guide is offered in displayable softcopy form. This is the only manual required to install and operate this product. The displayable manuals are part of the basic machine-readable material with no-charge feature number 5809. The files are shipped on the same media type as the basic machine-readable material CD-ROM.
These displayable manuals are provided in both BookManager® and Adobe Acrobat PDF formats. The manuals can be used with the BookManager READ licensed programs or Adobe Acrobat in any of their supported environments. Terms and conditions for use of the machine-readable files are shipped with the files.
Specified Operating Environment
On the mainframe system to be configured:
On the workstation machine on which the tool will run:
IBM Tivoli Performance Modeler is distributed with:
Security, Auditability, and Control
IBM Tivoli Performance Modeler uses the security and auditability features of the operating system software.
The customer is responsible for evaluation, selection, and implementation of security features, administrative procedures, and appropriate controls in application systems and communication facilities.
Shipment will begin on the planned availability date.
IBM Tivoli Performance Modeler for z/OS (5655-J63)
OTC Media Feature Feature Description Number Number IBM Tivoli Performance 0001 5809 Modeler for z/OS, V1.1 per Processor with 1-Year Software Maintenance
A Trade-up from the MVS USS Tool Kit V1.1.0 (5799-GHZ), the predecessor product, is available. You may trade-up each USS Tool Kit license to the Performance Modeler product using the feature number below.
OTC Media Feature Feature Description Number Number Trade-up from 5799-GHZ, MVS 0002 5809 USS Tool Kit V1.1.0, to IBM Tivoli Performance Modeler for z/OS, V1.1 per Processor with 1-Year Software Maintenance 1-Year Software Maintenance (5655-J64) IBM Tivoli Performance Modeler for z/OS, V1.1 per Processor Registration 0001 5809 Renewal 0002 5809 After-License 0003 5809 3-Year Software Maintenance (5655-J69) IBM Tivoli Performance Modeler for z/OS, V1.1 per Processor Registration 0001 5809 Renewal 0002 5809 After-License 0003 5809
OTC = One-Time Charge
Basic Machine-Readable Material: The distribution media features in the following table apply to program numbers 5655-J63, 5655-J64, and 5655-J69. To order, select the distribution medium feature for the desired program number.
Feature Distribution Language Number Medium English 5809 CD-ROM
Terms and Conditions
Agreement: IBM IPLA, IBM International Agreement for Acquisition of Programs and Support (IIAAPS) and the IBM Attachment for Support, IBM Agreement for Acquisition of Support (IAAS), IBM Addendum for Support (Software Maintenance) for Selected Programs (Z125-6495), and an order form.
Software Maintenance: IBM will make available to you the most current commercially available version, release, or update to all of the programs you acquire under this Agreement, should any be made available. IBM provides you assistance for your (1) routine, short duration installation and usage (how-to) questions; and (2) code-related questions. IBM provides assistance via telephone and, if available, electronic access, only to your information systems (IS) technical support personnel during the normal business hours (published prime shift hours) of your IBM Support Center. (This assistance is not available to your end users.) IBM provides Severity 1 assistance 24 hours a day, every day of the year. Consult your IBM Software Support Guide for details.
Software Maintenance does not include assistance for (1) the design and development of applications, (2) your use of programs in other than their specified operating environment or (3) failures caused by products for which IBM is not responsible under this Agreement.
The prices provided in this announcement are suggested retail prices for the U.S. only and are provided for your information only. Dealer prices may vary, and prices may also vary by country. Prices are subject to change without notice. For additional information and current prices, contact your local IBM representative.
IBM Tivoli Performance Modeler for z/OS (5655-J63)
OTC Feature Description Number OTC IBM Tivoli Performance Modeler 0001 $77,000 for z/OS, V1.1 per Processor with 1-Year Software Maintenance
OTC = One-Time Charge
A Trade-up from the MVS USS Tool Kit V1.1.0, the predecessor product, is available. You may trade-up each USS Tool Kit license to the Performance Modeler product using the feature number below.
OTC Feature Description Number OTC Trade-up from 5799-GHZ, MVS 0002 $ 0 USS Tool Kit V1.1.0, to IBM Tivoli Performance Modeler for z/OS, V1.1 per Processor with 1-Year Software Maintenance 1-Year Software Maintenance (5655-J64) IBM Tivoli Performance Modeler for z/OS, V1.1 per Processor Registration 0001 0 Renewal 0002 14,000 After-License 0003 52,500 3-Year Software Maintenance (5655-J69) IBM Tivoli Performance Modeler for z/OS, V1.1 per Processor Registration 0001 26,600 Renewal 0002 40,600 After-License 0003 79,100
Use Priority/Reference Code: LE001 Phone: 800-IBM-CALL Fax: 800-2IBM-FAX Internet: email@example.com Mail: IBM Atlanta Sales Center Dept. LE001 P.O. Box 2690 Atlanta, GA 30301-2690
You can also contact your local IBM Business Partner or IBM representative. To identify them, call 800-IBM-4YOU.
Note: Shipments will begin after the planned availability date.