Unfortunately, we do not support hard links on the Pool.    This is important because instead of using a database and storing each file that is needed once.... Plex creates the files in a folder structure for each item in the database, and then hard links the files together.   So, no, we do not support the plex database on the pool. As for WHY we don't support it, let me quote Alex (the developer):      Specifically, because we are a virtual file system, implementing hard links would