DoubleSight PC EXPANION Manual do Utilizador

This document was downloaded on May 16, 2015 at 00:52:58 Author(s) Slaydon, Samuel L.TitleAssessing server fault tolerance and disaster recovery imple

viiTABLE OF CONTENTS I. INTRODUCTION ...1 A. OVERVIEW ...1 B. BEN

viii3. Experiment Execution ...27 4. Results and Conclusions ...29 D. EXPERIMENT III ...

ixLIST OF FIGURES Figure 1. Wyse S90 Thin Client...6 Figure 2. Wyse S90 Student Workstation...6 Figure

xTHIS PAGE INTENTIONALLY LEFT BLANK

xiLIST OF TABLES Table 1. Terminal Server 1 Specifications...14 Table 2. Terminal Server 2 Specifications...14 Table 3.

xii THIS PAGE INTENTIONALLY LEFT BLANK

xiiiACKNOWLEDGMENTS I would like to extend a sincere thanks to my primary thesis advisor Dr. Douglas Brinkley, whose knowledge, leadership, and patie

xivTHIS PAGE INTENTIONALLY LEFT BLANK

1I. INTRODUCTION A. OVERVIEW In the past, computer users sat at a “dumb terminal” and logged into a mainframe for access to shared system resources.

2business enterprises. PC networks can maximize communication speed through numerous configuration topologies, such as ring, star, bus, etc., but th

NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS Approved for public release; distribution is unlimited ASSESSING SERVER FAULT TOLERANCE A

3is not only important that communications be reliable, but they must also operate in sync with improvements in technology that continue to usher in

4C. RESEARCH QUESTIONS 1. Thin Client Network Fault Tolerance a. What options are available for thin client network management software? b. Will

5II. LITERATURE REVIEW A. THIN CLIENT/SERVER-BASED COMPUTING (TCSBC) For the purpose of this thesis, thin clients will be identified as “diskless” d

6 Figure 1. Wyse S90 Thin Client The S90 also has two 2.0 USB ports and can be mounted on the back of a monitor, under a desk or on a wall. The W

7 Figure 3. Wyse S90 Smart Classroom Configuration C. THIN CLIENT BENEFITS 1. Hardware Desktop PCs require routine software revisions and have a

8models and tools to help organizations better measure and manage their IT investments.”5 There are many costs to be considered when maintaining a c

93. Centralized Management The ability to manage a computer network from a central hub will require fewer personnel in any IT department. Accordin

10Most systems on a network allow for “shadowing” or some sort of remote-take-over ability to analyze a problem while speaking to a user. If the use

11information at his or her desktop, making it more difficult to remove the data from the network. In some thin client environments, the option to s

12themselves. As a result, some machines are not as protected as others and the resulting security scheme is a mismatched array of protected and unp

THIS PAGE INTENTIONALLY LEFT BLANK

13III. THIN CLIENT TECHNOLOGY ABOARD NPS A. OVERVIEW This chapter will discuss the technological features and advantages of the thin client technolog

14nicknamed “TSVR02” was used as the testing server to avoid any risk to TSVR01 during research experiments. Tables 1 and 2 below show both servers

15C. WYSE S90 IN DETAIL There were other thin client technologies examined by the Graduate School of Business and Public Policy aboard NPS includin

16Before the Wyse S90, the device chosen for testing was the Wyse V90. At the time the V90 was tested, serious thin client implementation aboard NPS

17Firmware Features • Microsoft Windows XPe • Microsoft Internet Explorer 6.0 resident: HTML, JavaScript, XML, Active X Sun JRE, Media Player, Citr

18b. Microsoft Windows XP Embedded Operating System (OS) Since Microsoft programs and operating systems are so widely used across military installat

19appropriate because the PC Expanion has no moving parts and comes with only a limited amount of software for its setup. The PC Expanion contains n

20four S90s can fit in the same space that a conventional PC would occupy, providing a significant logistical advantage. D. WYSE DEVICE MANAGER (WDM

21In order to disable the write filter, an administrator must log on to that particular machine and double click the green dot, which will cause the

22the brand new image is applied, it will erase any existing operating system settings. Selective package application offers the most hassle-free me

iREPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188Public reporting burden for this collection of information is estimated to average 1 hour p

23IV. EXPERIMENTS A. BACKGROUND After building our experimental server, TSVR02, it had to be configured so that its communication with the Wyse S90

24Once this first account was added, a log-on attempt was made from a thin client to TSVR02 using the Windows RDP client on the S90. Once log-in pro

253. Experiment Execution a. The hard drive from the “damaged” server, TSVR02, was removed after it had been tested and determined that its stude

261) Received an error message stating, “The remote session was disconnected because there are no Terminal Server license servers available to provid

27instructed to log on to one of the other backup servers until TSVR01 could be repaired. 2. Preparations for the Experiment The hard drive that ha

28e. Installation of the software was successful, so all of the necessary drivers were downloaded and installed as well. f. A Microsoft Management

29i. Attempted Remote Desktop Connection from thin client to TSVR03 and was successful for all student accounts. All passwords were then changed.

30Edition to MS Server 2003 Enterprise Edition, which is the required operating system for server clustering. Upon closer examination of those piec

31information from TSVR01 to an external hard drive was another option for experiment. The GSBPP department had plenty of external hard drives for u

32c. Once the information was successfully transferred, the external drive was plugged into a USB port on the back of the TSVR02 CPU. d. The boot

iiTHIS PAGE INTENTIONALLY LEFT BLANK

33information is always accessible, even in the event of an emergency, is worth the effort. Another attractive advantage of this method is that ex

34THIS PAGE INTENTIONALLY LEFT BLANK

35V. SUGGESTIONS FOR FURTHER RESEARCH A. SMART CLASSROOMS The smart classroom in Ingersoll Hall, Room 271, has been operational since January 2007.

36build wireless thin clients, including Wyse, BOSaNOVA and Hewlett-Packard that support a variety of operating systems including Windows CE, Windows

37XTC-1300 is the “top of the line” Windows XP embedded wireless thin client that BOSaNOVA offers. Below are images of the XTC-1300. A list of its

38Firmware Features • Microsoft Windows XPe • Microsoft Internet Explorer 6.0 resident: HTML, JavaScript, XML, Active X Sun JRE, Media Player, Citr

39Firmware Features • Microsoft Windows XPe SP2 • Microsoft Internet Explorer 6.2 • RDP Version 6.0 • ICA Version 9 • CA’s eTrust Antivirus for

40Firmware Features • Microsoft Windows XPe • Microsoft Internet Explorer 6.0 • Altiris manageability agent (full version) • Citrix ICA 9.x Prog

41 B. CHAPTER SUMMARY This chapter introduced the concept of wireless thin clients for use in further implementations of the smart classroom model

42THIS PAGE INTENTIONALLY LEFT BLANK

iiiApproved for public release; distribution is unlimited ASSESSING SERVER FAULT TOLERANCE AND DISASTER RECOVERY IMPLEMENTATION IN THIN CLIENT ARCHI

43VI. CONCLUSION There are plenty of arguments about the eventual end to the conflicts in Iraq and Afghanistan, but to this day there seems to be no

44thesis, there are many advantages to implementing thin client architectures in the DoD, especially in light of current operations in Afghanistan an

45LIST OF REFERENCES 3Com Corporation. 1999. “What is Thin Client?” Available at URL:http://www.pulsewan.com/data101/thin_client_basics.htm. Accessed

46“Wyse Technology Ships Thin Clients Based on Microsoft's New Windows Embedded CE 6.0.” Wireless News. 21 May 2007. Dudley Knox Library, Naval

47INITIAL DISTRIBUTION LIST 1. Defense Technical Information Center Ft. Belvoir, Virginia 2. Dudley Knox Library Naval Postgraduate School

ivTHIS PAGE INTENTIONALLY LEFT BLANK

vABSTRACT This thesis will focus on assessing server fault tolerance and disaster recovery procedures for thin-clients being implemented in smart cla

viTHIS PAGE INTENTIONALLY LEFT BLANK