First of all, the astronomical measuring data from the radio telescope Effelsberg is buffered in 8 Gbit FC SAN on a 120 TB disk-online-storage. In terms of the server, powerful Fujitsu Primergy RX 300 S6 systems are available, redundantly shifting the data with GRAU DATA OpenArchive onto the Spectralogic LTO 5 Tape Libraries in Effelsberg and Bonn. In 2012, the archiving software manages around 350 tapes per library, each tape containing 1,5 terabyte (TiB) of data – and databases are quickly growing. Altogether, the amount of data rises to 525 terabytes until May 2012. The overall system, however, is expendable to up to 3,5 petabytes at the present time.
“As opposed to classic standard archiving systems in companies, the tape technology in our department of the Max Planck Institute is often used as expanded online storage, accessed by researchers on a regular basis,” Jan Behrend explains the storage space structure.