Tape Libraries

In order to ensure a continuous flow of climate data from the high performance computer to the archiving system and fast access to archived data, DKRZ operates one of the world’s largest and most powerful data archives. The ever faster increase in newly archived climate data is currently (as of 2021) about 30 Petabytes per year. The current system is designed for handling up to 75 Petabytes per year. 


The archive system at a glance:

Magnetbandarchiv innen

  • Software: StrongLink
  • 8 automated Oracle/StorageTek SL8500 tape libraries
    • 8 robot arms per library
    • 77000 slots for magnetic cassettes
    • 90 tape drives (LTO-5/6/7/8)
  • 2 Petabytes disk cache
  • more than 300 Petabytes total capacity
  • bidirectional bandwidth of 15 Gigabyte/s (sustained)


Movie: Inside of the tape library