Designing a Microsoft SharePoint 2010 Infrastructure Vol 1 part 46. This course is intended for IT Professionals who use Microsoft SharePoint 2010 in a team-based, medium-sized to large environment. While they may have implemented a SharePoint deployment, they have limited experience in designing a SharePoint infrastructure. They likely work as a senior administrator who acts as a technical lead over a team of administrators. Members of this audience should have at least 6 months experience with SharePoint 2010. | Designing an Enterprise Search Strategy 9-9 Enterprise Search Architecture Key Points The search architecture in SharePoint 2010 has changed significantly from previous versions of SharePoint. The Search Service Application SSA has three primary components The index server role hosts one or more crawlers which connect to and index content from various sources including SharePoint content Web sites File shares Exchange public folders Lotus Notes content Crawlers enumerate the source content and pass text information to the relevant index partition on the query server. The crawler also indexes any metadata to the search property database and updates the crawl status in the crawl database. MCT USE ONLY. STUDENT USE PROHIBITED 9-10 Designing a Microsoft SharePoint 2010 Infrastructure The query server role hosts one or more index partitions to provide results to search queries from users. Users enter a search query on a Web Front End WFE server which then directs the query to a query server. The query server retrieves information from the index partition stored on the local file system of the query server and metadata information from the search property database. Database servers in the farm host a search administration database one or more search property databases and one or more crawl databases for each SSA The search administration database holds search configuration details such as best bets and index access control lists ACLs for security trimming purposes. The search crawl database holds information about the status of crawls crawled items and crawl history. The search property database holds information associated with crawled items such as properties metadata and crawl queues. Note The index server role does not hold a copy of any index partitions as in previous versions of SharePoint. The crawler constructs index partitions directly on query servers. The FAST search architecture complements the SharePoint search architecture with a similar mechanism but .