Intro With Archlinux32 reaching some terabytes of data to backup I needed something “modern”, like a tape. Now, big tapes like LTO-8 are close to unaffordable, LTO-4 drives and tapes on the other hand can be aqcuired on the cheap. They get thrown out of servers rooms at the moment. An LTO-4 tape can take 800 GB uncompressed data and the drive can be bought on Ebay for 200 to 300 CHF.
Intro Into the category of “What can I possibly do useful with a Raspberry PI?” falls the idea of origanizing a backup server using the Bacula backup software. Details I use an old USB disk and a USB hub as external storage for the Bacula volume data and for the catalog (stored in PostgreSQL). For full-filling the off-site requirement the jobs are copied with a ‘Migration Job’ to an external FTP server.