Sofware

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Operating System








Windows Server 2003
Terminal Server Capacity and Scaling

White Paper







Abstract

Microsoft Windows Terminal Server lets users run Windows®-based applications on a remote computer running one of the Windows Server 2003 family of operating systems. This white paper contains testing methodologies, results, analysis, and sizing guidelinesfor Microsoft Windows Server 2003 Terminal Server. Hewlett Packard worked in cooperation with Microsoft to perform the initial sizing tests and data collection in HP labs. Microsoft performed the final round of testing and analysis collection using Hewlett Packard equipment. The tests were performed using Windows Server 2003, Enterprise Edition, build 3790.

[pic]© 2003 Microsoft Corporation. All rights reserved.
The information contained in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannotguarantee the accuracy of any information presented after the date of publication.

This white paper is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN THIS DOCUMENT.

Microsoft, Outlook, Windows, the Windows logo, Windows Media, and Windows NT are either registered trademarks or trademarks of MicrosoftCorporation in the United States and/or other countries.

NEC and PowerMate are U.S. registered trademarks of NEC Corporation. Express5800 is a trademark of NEC Corporation.

Other product and company names mentioned herein may be the trademarks of their respective owners.

Microsoft Corporation • OneMicrosoft Way • Redmond, WA 98052-6399 • USA


Table of Contents

Table of Contents 3

Introduction 5

Results Overview 6

Server Capacity 6

System and User Memory Requirements 8

Comparison with Terminal Services running on Windows 2000 8

Test Environment and Testing Tools 10

Test Environment 10

Testing Tools and Scripts 11

Testing Methodology 14

Analysis ofthe Results 16

Overview 16

Memory Requirements and Utilization 16

Network Usage 19

Effect of Increased Color Depth (16 bit) 20

Effect of File Redirection 20

Effect of Printer Redirection 21

Effect of Logon Activity on CPU Utilization 21

Effect of Kernel Address Space Limitations 22

Effect of Typing Rate on CPU Utilization 24

Effect of BackgroundSpelling and Grammar Checking 25

Performing Your Own Scaling Tests 26

To Test or Pilot? 26

Determining Application Suitability 26

Characterization of Users 27

Network Environment 27

Appendix A: Test Script Flow Charts 28

Knowledge Worker Script 28

Data Entry Worker Script 29

Appendix B: Terminal Server Settings 31

Appendix C: HP Server Specifications 33The ProLiant Advantage 33

ProLiant Server Models 34

ProLiant Servers in a SBC Environment 34

Tested Servers 36

SBC Solution Sizing 37

For More Information 39


Introduction

Microsoft Windows Terminal Server lets users run Microsoft® Windows®–based applications on a remote Microsoft® Windows®  2000 or Microsoft® Windows® 2003–based server. This white paper containstesting methodologies, results, analysis, and sizing guidelines for Windows Server 2003 Terminal Server. Hewlett Packard worked in cooperation with Microsoft to perform the initial sizing tests and data collection in HP labs. Final testing and data collection was performed at Microsoft using Hewlett Packard servers. The tests were performed using Windows Server 2003, Enterprise Edition, build 3790....