Amanda is a powerful backup system for Linux, UNIX, BSD, Mac OS X and Microsoft Windows released under an Open Source license. The application works in client-server architecture, thanks to which one computer can archive data from the whole network. Amanda has a unique feature that saves data to both the tape and hard drive at the same time, so that the data is available for immediate recovery for a certain period of time.

An important issue is that the data is compressed with generally available algorithms, which allows for their easy recovery even after a backup system failure. The stored data can be encrypted with both symmetric and asymmetric cryptographic algorithms (aespipe or gpg). The portions of protected data can be divided into multiple media, which increases the maximum size of one-time archiving.

Automatic media marking makes it easy to find the tape with the files you need. A configurable compression factor allows you to find a compromise between system performance and media capacity.