Before you select a location, there are a couple of things that you need to know. First, you should never place a catalog file into a folder that’s being indexed. The reason is because Windows monitors indexed folders for changes. If you were to add a file to the folder, Windows would update the catalog. Windows would then see that the catalog has been updated, and reindex the folder again. It’s a pretty vicious cycle, so it’s best to just choose a non indexed location.
The other thing that you need to know is that if you are indexing Web content, you shouldn’t place the index in or beneath the wwwroot folder. Doing so slows down both the Indexing Service and IIS.
Posted by wilsongis 