I installed a local Galaxy server with Apache proxy, kerberos authentication and submitting to a cluster with DRMAA. Everything works great, so far. Sequence data is NFS mounted on the Galaxy server and all cluster nodes at /shared/ngs/<labname>. I would like to configure one Data Library for each lab, add the data from the lab's ngs directory to their library, and synchronize the library and directory. I used "allow_library_path_paste = True" and "Upload files from filesystem paths" to add data to a library from an ngs lab directory. This works great the first time, but if you do it a second time the data is duplicated in the library. 1) Is there a way to synchronize a data library and directory? 2) If so, is there a way to automate the synchronization, perhaps scripted with cron? Thanks for your help! -Erik