Files in user home directories are backed up everyday. Our backup script starts everyday 1:00 AM. If you accidentally delete an important file, contact a system administrator as soon as possible. Let them know which files were lost, when they were lost, and when they were last changed. The system staff will do their best to restore your files from backup tape, but this is not always possible. The daily backups are normally kept for about 60-days. Semi-annual backups of the system are usually made in January and July, and are kept for two years.