PENNback is an ISC sponsered service that provides backup and archive of data stored on network-attached personal computers and workstations. PENNback is a chargeback service. Charges depend on how many files and how much data you back up during each session and the total number of files and total amount of data you store over time.
Servers usually cost more.
Prices can be estimated using this chart . PENNback supports a wide variety of client platforms. In the Penn environment, this usually means getting access to PennNet using PPP over a high speed modem. You are patient. Since PENNback moves copies of your files over the network, backing up your system can be a painfully slow process, especially for the first backup.