We have a SharePoint Server 2013 farm and a file server at a different location. We want to crawl the file server, in order to provide index data to the SharePoint search. The search range has been extended accordingly, and searching works fine. However there is way too much traffic between farm and file server when the crawler is indexing the file share.
What is the recommended setup for this kind of delocalization ? It seems to be necessary to set up the crawler at the site where the file server is, and either access the index remotely, or transmit just the indexing results to the farm site.