Is it possible to search the name of the file in EpiServer CMS 6.0. I know that it is not possible in EpiSErver CMS 5.0 but I am not sure it is possible in EpiServer CMS 6.0. I tried to search file name in searchdatasource but there was no result.
Yes, it is possible. You can find more information about setup here:http://labs.episerver.com/en/Blogs/Mari-Jorgensen/Dates/2009/11/Searching-for-files-in-EPiServer-CMS-5/