File System Purging

SCRATCH Filesystem

The SCRATCH filesystem (mounted under the /scratch directory) is subject to the 30-day file purge rule. Any file that has not be accessed in over 30 days will be purged. In order to help users identify old files in their /scratch directory, we generate one file per user, every morning. This file, namely /usr/local/var/lustre_stats/$USER.over30d.files.lst (where $USER refers to the user's UGA MyID), contains a list of all the files that this user has in his/her /scratch directory and that have not been accessed in over 30 days. This file provides the full path, the last accessed date, and the size of the files that have not been accessed in over 30 days.The /scratch filesystem updates the file access time once in 5 days. The last accessed time in the file is approximate and could be off by up to 5 days. The purging system understands this and will make sure the access time falls within the purge window before deleting the file. During the purge only files are deleted, the directories will be left alone. Please let us know if you have any questions.