Tandem Capacity Model (TCM) Manual
• Updated the list of disk model numbers under DISKFACTOR Entry.
• Added ACTUALDISK53 Entry as new example under DISKFACTOR Entry.
Changes to the 522695-004 Manual
The template control file has been updated and five new environmental entries have been described
in Chapter 3, Using MeasTCM.
Document Organization
This document is organized as follows:
Chapter 1: “Introduction”
gives an overview of the product.
Chapter 2: “TCM System Setup”
describes the system requirements for TCM and MeasTCM and describes the installation
procedures. The section also discusses version information and models.
Chapter 3: “Using MeasTCM”
discusses the product MeasTCM that provides an interface between Measure and TCM.
Chapter 4: “Getting Started With TCM”
provides some guidelines to help you start working with TCM. This chapter also describes the
TCM Initial menu, explains how TCM handles security issues, how to access TCM online help,
and how to load TCM models created by other users.
Chapter 5: “Creating a WA Model”
describes how to create a customized Workload Apportionment (WA) model for a new
application (or set of applications).
Chapter 6: “Creating a Performance Model”
describes how to create a Performance model (PM) for your application or a set of applications.
Chapter 7: “Modeling Batch Workloads”
describes batch transactions modeling and compares it with the performance model and WA
model.
Chapter 8: “Workload Apportionment Model”
describes the screens and menus of the WA model.
Chapter 9: “The Performance Model”
is used to answer the “what if” questions about the baseline sample data that has already been
computed in the WA model of TCM.
Chapter 10: “Using TCM Expert”
describes TCM Expert, which helps in capacity planning when you have limited knowledge of
application design or architecture.
Appendix A: “TCM File Names”A
lists the TCM file names and gives a brief description of the files.
Appendix B: “MeasTCM Error Messages”
lists MeasTCM error messages.
Appendix C: “TCM Menus”
lists the TCM items for the TCM WA and PM menus.
Appendix D: “TCM Response Time Formulas”
lists the TCM response time formulas.
Appendix E: “Common TCM Procedures”
contains step-by-step procedures for common TCM procedures.
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