HPSS

• Current Size of NERSC HPSS

  • 4 independent systems
  • 10 tape robots (total 46000 tape cartridges)
  • 60 tape drives
  • 14 control & mover nodes
  • 2.5 TB disk (metadata & cache)

• Current Usage of NERSC HPSS

  • 68 TB of Data (48 TB user + 20 TB backup)
  • ~1.7 TB of I/O per day
    • 1 Backup System (W: ~300 GB/day)
    • 2 User Systems (W+R: ~700 GB/day each)

Notes: