If you are running out of disk space for indexes, you can create new index locations for the Indexing service to use to store its indexes. You can add more locations if needed. When you add a new location, the Indexing service may choose to use it when creating indexes for a new archive. If you want to force the Indexing service to use a particular location, use Close Location to close all the other locations, thus leaving just one location open.

When you close a location, you prevent the Indexing service from creating new indexes there. This does not stop the Indexing service from adding to existing indexes, so you must take action before space runs out.