【正文】 mechanisms they employed, these solutions were described as “storeand forward.” They required that the “post office” (hub server where the electronic form of the message database and message transport mechanisms executed) be close to the users whose accounts it hosted. In other words, the post office was connected to the users through a LAN. Consequently, the service that could be provided on these high speed LANS was defined as “LANspeed,” as opposed to “WANspeed,” which indicates that the service is being made available from a distant location and travels across the pany’s widearea work links. The benefits of this distributed design were better performance and scalability (defined as the number of users that could be connected to, or hosted by, a single post office). Users Service Management Function 15 enjoyed an additional benefit as well。 System Administration Service Management Function Published: October 20xx Reformatted: January 20xx For the latest information, please see ii System A dministration The information contained in this document represents the current view of Microsoft C orporation 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 mitment on the part of Mic rosoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication. This document is for informational purposes only. MICROSOFT MAKES NO WA RRANTIES, EXPRESS, IMPLIED O R STATUTORY, A S TO THE INFORMATION IN THIS DOCUMENT. C omplying with all applicable copyright laws is the responsibility of the user. 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Unless otherwise noted, the example panies, anizations, products, domain names, e mail addresses, logos, people, places, and events depicted herein are fictitious, and no association with any real pany, anization, product, domain name, address, logo, person, place, or event is intended or should be inferred. ? 20xx Microsoft C orporation. A ll rights reserved. Microsoft is either a registered trademark or trademark of Microsoft C orporation in the United States and/or other countries. The names of actual panies and products mentioned herein may be the trademarks of their respective owners. Service Management Function iii Contents Executive Summary ............................................................................................... 1 Introduction ........................................................................................................... 3 System Administration Overview ......................................................................... 5 Goals and Objectives ............................................................................................6 Scope...................................................................................................................6 Key Definitions .....................................................................................................7 Processes and Activities ........................................................................................ 9 System Administration Models ..............................................................................9 Centralized Administration of Centralized Hardware ......................................10 Centralized/Remote Administration of Distributed Hardware..........................11 Centralized/Delegated Administration of Distributed Hardware ......................12 Distributed Administration of Distributed Hardware .......................................13 Distributed Administration of Centralized Data Centers .................................15 Adapting the Different Models to Fit Your Business..............................................17 Roles and Responsibilities................................................................................... 21 Operations Manager ...........................................................................................21 Relationship to Other SMFs ................................................................................. 23 Security Administration ......................................................................................23 Service Monitoring and Control ...........................................................................23 Job Scheduling ...................................................................................................23 Network Administration ......................................................................................23 Directory Services Administration .......................................................................24 Storage Management .........................................................................................24 1 Executive Summary With the everincreasing requirements of customers and the globalization of panies, the delivery of worldclass services can make the difference between the success and failure of an anization. IT environments, although carefully planned originally, evolve with disparate and distributed arch