tailieunhanh - Microsoft Office SharePoint Server 2007 administrators companion phần 2

Trong một kịch bản triển khai máy chủ duy nhất (thể hiện trong hình 3-7), một dịch vụ máy chủ duy nhất tất cả các nhu cầu của khách hàng và cung cấp tất cả các dịch vụ cần thiết vào mạng. Cấu trúc liên kết này cũng sử dụng động cơ cơ sở dữ liệu SQL Express | 78 Part I Planning Your Deployment and Installing Microsoft Office SharePoint Server 2007 Single-Server Deployment In a single-server deployment scenario shown in Figure 3-7 a single server services all the client s needs and offers all the needed services to the network. This topology also uses the SQL Express database engine and installs it on this server. A single server is assigned all the farm roles including the following ones Web front-end The role to which users always connect to access all farm services including search and indexing Excel Calculation Services collaboration portals and more Query server The role that allows users to query the index to find content Search server The role that crawls and indexes content from content sources Excel Calculation The role that hosts complex queries for end-user Excel spreadsheets and helps users maintain persistent connections to data points Forms Server The role that offers InfoPath forms to the users on your network Web content management The role that allows staging and publishing of Web content Single-server roles are best suited for environments with a small user base or for testing labs. User Requests Front End Server Application Server Database Figure 3-7 Single-server topology Small Server Farms A small-farm environment shown in Figure 3-8 is a two-tiered environment in which one server is running SQL Server and the other server is running all the roles in the SharePoint farm. If performance becomes an issue you can always add another WFE server to the farm. If data redundancy becomes an issue you can always cluster your SQL servers. If both increased performance and data redundancy are needed you can add servers to your SharePoint farm as needed and cluster your SQL Server server. Both actions will help ensure that users can access their data quickly and easily. Chapter 3 Design Considerations and Deployment 79 User Requests Web Front-End Server Application Server Dedicated SQL Server Figure 3-8 .