I have a file server that contains about 500GB of data. We are doing synthetic full backups. The current configuration has an incremental backup running every night. The server in question is on a gigabit switch and has a Gb NIC. Right now, incremental backups are taking 36-48 hrs and fulll backups are taking 80 hours to complete. This is completely unacceptable as we are required to rotate tapes once a week. I need some help in figuring out what the issue is.