Configure SharePoint 2010 Search using best practices
- http://technet.microsoft.com/en-us/library/cc262794(v=office.12).aspx
, when to crawl content. - http://technet.microsoft.com/en-us/library/ff599528.aspx , FAST search topology.
- http://social.technet.microsoft.com/wiki/contents/articles/411.best-practices-for-using-a-dedicated-front-end-web-server-for-crawling-in-microsoft-office-sharepoint-server-2007-en-us.aspx , how to use a dedicated web server for crawling.
Aryan Nava 