Lund Performance Solutions

Product Overview
Chapter 2 describes the Forecasy Capacity Planner product in more detail, including components and host data collectors. It also defines terms necessary both to reading and understanding this manual, and to successfully running the Forecast program. New features are listed, and a procedural summary of how to extract and report performance data wraps up the chapter. Chapter 2 contains the following sections:

Product Description

Forecast Capacity Planner (Forecast) allows system administrators and planners to answer what- if questions regarding the impact of new applications, additional users, performance tuning, and hardware upgrades.

Using Forecast, an administrator can create models to view the future performance of the system and address a variety of questions based on application workload and business growth, such as:
  • Can an upgrade be postponed until next year?
  • What response service levels can be expected?
  • What will be the effect of upgrading to a larger system?
  • Can we extend the life of the existing system by balancing workloads?
  • Will changes to applications change response times?
  • Components


    A collection is a raw collection data file that contains information about a computer system that has been gathered at time intervals specified by the user. This file usually includes information about the processor, memory, disk statistics, and process information. A collection has not yet been validated within Forecast. These are saved within Forecast as *.col files.


    A model is raw data attached to working algorithms and saved. By saving data as a model, the user is verifying that the model accurately represents the actual data and information on their systems. These are saved within Forecast as *.mdl files.


    A resource is a hardware component of any host system, including CPUs and disk drives. These can be saved within Forecast as a *.dat file in the Resource.dat file.


    A center is a collection of like resources (see previous section). For example, one or more CPUs is a CPU center; one or more disk drives is a disk drive center.

    Workload Group

    A workload group is a group of similar, identifiable transactions on the host system performed by individual users and programs. Workload groups can be grouped by:
  • Applications
  • User login
  • Departmental processes
  • Drive device
  • A workload group may be as simple as one user running one program, or as complex as entire departments running many programs.


    A desktop is the current state of the Forecast display area, which includes the size and position of the main program window and all of the charts or panes currently open in the application, saved to disk as a Forecast desktop file (*.dsk). By saving and loading a desktop, a previous session can be quickly and easily restored with minimal work duplication.

    Product Audience

    Forecast Capacity Planner is designed for use by MPE/iX and HP-UX host system administrators and system planners. However, the usefulness of timely and accurate forecasting will benefit an entire organization—from online users to top management.

    Procedural Summary

    Forecast Capacity Planner allows you to collect data from your system, build a baseline model of your system, and create performance projections from that model. The major procedural steps in the process include:
  • Identify the resources, (CPU, and disk drive types) on your host system.
  • Identify and characterize the workload groups on your host system.
  • Run the data collection and reduction software:
  • SOS/3000 Performance Advisor for MPE/iX,
  • SOS/9000 Performance Advisor for HP-UX,
  • to create a data collection file.
  • Transfer the data collection file to your PC to create an unvalidated model (a collection) in Forecast Capacity Planner.
  • Create a model. Evaluate and modify the projected model as needed to ensure that it is an accurate representation of your host system.
  • Validate the baseline model.
  • Create a performance projection for your validated model.
  • New Product Features

    The following features have been added to the Forecast Capacity Planner product since version B.0x:
  • With version C.0x, Forecast Capacity Planner is fully compliant with the Windows user-interface standards. Windows 9X/NT/2000 users will find the interface familiar and easy to navigate. Menus and tools are logically placed and organized for quick access. All of the commands needed to load, validate, and forecast a model are accessible from the Main Program window.

  • A number of multi-step procedures are combined or automated in version C.0x. For example, generating detailed information on model components is now done with a simple mouse click.

  • The Save Desktop command in version C.0x allows you to save the current desktop as a named file to preserve settings and layouts for future use.
  • If you have used earlier versions of Forecast Capacity Planner, you can use one of the Quick Tours in Chapters 5 and 6 to familiarize yourself with the new features and functions in version C.0x.

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