IBM United States
Software Announcement 203-200
August 12, 2003
IBM Tivoli Performance Modeler for z/OS V2.1 delivers edit capability and enhanced capacity planning to help manage IBM zSeries and System/390
At a glance
IBM Tivoli Performance Modeler for z/OS V2.1 is a PC-based capacity planning and performance modeling tool for OS/390® or z/OS-based mainframe computers that helps:
For ordering, contact:
Your IBM representative, an IBM Business Partner, or the Americas Call Centers at 800-IBM-CALL (Reference: YE001).
IBM Tivoli® Performance Modeler for z/OS® V2.1 is a PC-based performance modeling and capacity planning tool that runs on Windows®. It can be as portable as your PC or laptop. IBM Tivoli Performance Modeler for z/OS is designed for system management on the zSeries® and System/390® (S/390®).
With growing operating system complexity and the huge impact of responding to workloads, basic Central Processor Unit (CPU) utilization is no longer enough. IBM Tivoli Performance Modeler for z/OS can model:
New in this version:
IBM Tivoli Performance Modeler for z/OS V2.1 helps you 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: Good data can help you make better decisions.
Additional characteristics of IBM Tivoli Performance Modeler for z/OS V2.1 include:
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 to be increased, 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. If they are to help, capacity planning tools must consider all of 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.
Simulation versus analytic models
IBM Tivoli Performance Modeler for z/OS V2.1 creates a simulation model that can easily be modified to reflect changes in the operating system when they occur.
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 typically 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 can 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. Analytic models use mathematical equations that represent the actual events being modeled. Changing the internals of an analytic model means changing these equations, which can be difficult to do. As computing systems grow more complicated, it can become increasingly more difficult to derive queuing equations that can accurately model these systems.
IBM Tivoli Performance Modeler for z/OS V2.1 creates simulation models and therefore has a distinct advantage over products that use analytic models when staying current with system changes. Simulation models rely on programming (not queuing equations) to model the actual systems. It is typically much easier to reprogram the simulator to account for system changes than it is to generate new queuing equations. Simulators can be easily reprogrammed to model changes in the operating system as they occur.
Model input and output
IBM Tivoli Performance Modeler for z/OS V2.1 can model a wide variety of hardware and software changes.
It is a powerful tool that can help 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
Section 508 of the U.S. Rehabilitation Act
IBM Tivoli Performance Modeler for z/OS V2.1 is capable, as of August 1, 2003, 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.
Value Unit based pricing
Value Unit based pricing will help to align the prices of these products to the principle of the PSLC pricing curve which provides for a lower price per MSU (millions of service units per hour) for larger capacities.
There is also a price benefit when you grow your capacity. Additional capacity will based on the number of Value Units (MSUs) you have already installed. For example, additional capacity will not be priced starting at the base with a higher price per unit but on the capacity that is already installed.
For IBM Tivoli Performance Modeler for z/OS V2.1, the Value Units are derived based on the total MSUs of the System/370, S/390, and zSeries based systems running OS/390, z/OS, and z/OS.e that are to be modeled by this software.
IPLA and Subscription and Support considerations
IPLA licenses can be transferred from one machine to another within, but not limited to an enterprise. You may aggregate the capacity for all the processors the product is operated on to achieve a more economic price. This will result in a single Proof of Entitlement. It is your responsibility to manage the distribution of Value Units within the limits of the entitlement of the product license.
Subscription and Support must cover the same capacity as the product license entitlement. Subscription and Support will be available in the country in which the agreement is made.
IBM Tivoli Performance Modeler for z/OS V2.1 is complementary to IBM Tivoli Decision Support for OS/390, which provides a central repository for easy access to enterprise-wide IT information for performance reporting, capacity management, service level management, and accounting.
Training is available, or will be available, for many IBM Tivoli® products. Education is offered through IBM Learning Services and through IBM Tivoli Software Authorized Training Providers.
For current information on IBM Tivoli software education, visit the IBM Tivoli Software Education home page at:
or call 888-746-3331.
Current schedule information for IBM Tivoli training is available on the Tivoli Software Education Schedules page at:
Product information will be available on day of announcement through the Offering Information Web site at:
The IBM Publications Center:
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. Payment options for orders are via credit card or customer number. A large number of publications are available online in various file formats, and they can all be downloaded free of charge.
The IBM Publications Notification System (PNS):
The PNS enables subscribers to set up profiles of interest by order number/product number. PNS subscribers automatically receive notifications by e-mail of all new publications defined in their profiles. These may then be ordered/downloaded via the Publications Center.
Displayable softcopy publications: The following publications are provided in English in displayable softcopy form. The displayable manuals are part of 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 the supported environments. Terms and conditions for use of the machine-readable files are shipped with the files.
Specified operating environment
Hardware requirements for IBM Tivoli Performance Modeler for z/OS V2.1 are:
On the mainframe system to be configured:
On the workstation machine on which the tool will run:
IBM Tivoli Performance Modeler for z/OS V2.1 is distributed with:
Security, auditability, and control
IBM Tivoli Performance Modeler for z/OS V2.1 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.
The product in this announcement has one charge unit Value Units. The Value Units are derived based on the total MSUs of the System/370, S/390, and zSeries based systems running OS/390, z/OS, and z/OS.e that are to be modeled by this software.
Value Unit Exhibit VUE007
MSUs MSUs Value minimum maximum Units/MSU Base 1 3 1 Tier A 4 45 0.45 Tier B 46 175 0.36 Tier C 176 315 0.27 Tier D 316 + 0.2
Value Units for non-MSU-based S/390® processors:
Value Units/ Hardware machine MP3000 H30 6 MP3000 H50 8 MP3000 H70 12 ESL Models 2
Translation from MSUs to Value Units
Value MSUs Units/MSU Base 1- 3 1.00 Tier A 4- 45 .45 Tier B 46-175 .36 Tier C 176-315 .27 Tier D 316+ .20
Feature Quantity number 1 Value Unit 3962 250 Value Units 3963
If the customer has installed 1,500 MSUs, the applicable Value Units would be:
Translation from MSUs to Value Units Value Value MSUs * Units/MSU = Units Base 3 * 1.00 = 3.00 Tier A 42 * .45 = 18.90 Tier B 130 * .36 = 46.80 Tier C 140 * .27 = 37.80 Tier D 1,185 * .20 = 237.00 Total 1,500 343.50
When calculating the total number of Value Units, the sum is to be rounded up to the next integer.
Value Units for IBM 9672 Processors will be based upon the full capacity of these systems. This is applicable to all S/390-based systems that are measured on MSU capacity. Information on MSU capacities can be found in the IBM System/370, System/390®, and zSeries Machine Exhibit , Z125-3901.
Value Units for zSeries will be based upon full MSU capacity as defined in the Machine Exhibits.
There will be a tool available that provides support for transforming the MSU-based capacities of S/390 systems to new Value Units by calculating the applicable number of Value Units for a given number of MSUs.
Current licensees with active maintenance or subscription will receive instructions on how to order the new version.
Orders for new licenses will be accepted now.
Shipment will begin on the planned availability date.
To order, specify the program number, feature number 9001 for asset registration, and the one-time charge (OTC) feature number. Also specify the feature number of the desired distribution medium.
To suppress shipment of media, select the license-only option in CFSW.
IBM Tivoli Performance Modeler for z/OS V2.1 is eligible for On Off Capacity on Demand (OOCoD). To order OOCoD, specify the OTC feature number for MSU Day Authorizations. For more information on OOCoD, refer to Software Announcement 203-202 , dated August 12, 2003.
OTC Medium Program feature feature Description number number number Medium IBM Tivoli Performance Modeler 5698-A18 5809 CD-ROM for z/OS V2.1 1 Value Unit 3962 250 Value Units 3963 MSU Day Authorizations: * Per 1 On Off Capacity On Demand 3964 Temporary Use Charge Per 250 On Off Capacity On Demand 3965 Temporary Use Charge
Subscription and Support
To receive voice technical support via telephone during normal business hours, and future releases and versions at no additional charge, Subscription and Support must be ordered. The capacity of Subscription and Support (Value Units) must be the same as the capacity ordered for the product licenses.
To order, specify the support program number and feature number 9001 for asset registration. Also, specify the desired charge and medium feature numbers.
IBM is providing Subscription and Support for this product via a separately purchased offering under the terms of the IBM International Agreement for Acquisition of Support (IAAS). This offering:
Once Subscription and Support is ordered, the charges will renew automatically annually unless cancelled by the customer.
To decline Subscription and Support, specify the program number and the Decline (no charge) feature number listed below:
Annual support charge Medium Program feature feature Description number number number Medium IBM Tivoli Performance Modeler 5698-S52 6300 Hardcopy for z/OS One Year Pub Subscription and Support 1 Value Unit 3997 250 Value Units 3998 Decline (no charge) 3989 Per MSU Registration (no 3992 charge)** Per 250 MSU Registration (no 3993 charge)**
Terms and conditions
These products are licensed under the IBM Program License Agreement (IPLA), and the associated Agreement for Acquisition of Support, and the Addendum for Support (Z125-6883) which provides for support with ongoing access to releases and versions of the program. These programs have a one-time license charge for use of the program and an ongoing recurring charge for the enhanced support that includes telephone assistance (voice support for defects during normal business hours) as well as access to updates, releases, and versions of the program as long as support is in effect. S/390 and zSeries IBM Operational Support Services Support Line is an option for those customers who desire added services.
Warranty: This program has warranty for a minimum of one year from acquisition from IBM or authorized Business Partner. The warranty provided to the customer, for at least one year from acquisition, is access to databases (read Web sites) for program information, FAQs, including any known fixes to defects, which the customer can download or obtain otherwise and install at their leisure.
Program support: Subscription and Support includes telephone assistance (voice support for defects during normal business hours) as well as access to updates, releases, and versions of the program as long as support is in effect. Customers will be notified of discontinuance of support with 12 months notice. If you require additional support from IBM, including an extension of support beyond the discontinuance date, contact your IBM Representative or Business Partner. This extension may be available for a fee.
Money-back guarantee: If for any reason you are dissatisfied with the Program, return it within 30 days from the invoice date, to the party (either IBM or its reseller) from whom you acquired it, for a refund. This applies only to your first acquisition of the Program.
Usage is limited to the quantity of Value Units licensed.
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.
OTC Program feature Description number number OTC IBM Tivoli Performance Modeler 5698-A18 for z/OS V2.1 1 Value Unit 3962 $ 1,650 250 Value Units 3963 412,500 MSU Day Authorizations: Per 1 On Off Capacity On Demand 3964 7 Temporary Use Charge Per 250 On Off Capacity On Demand 3965 1,750 Temporary Use Charge
Annual support charge Program feature Annual Description number number charge IBM Tivoli Performance Modeler 5698-S52 for z/OS One Year Subscription and Support 1 Value Unit 3997 $ 250 250 Value Units 3998 62,500
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Note: Shipments will begin after the planned availability date.