Hardware Characteristics

• 1 STK Streamline SL8500
  • Actual capacity: 14.6 Petabytes
    (4600 cartridges T10000 Standard with a mix of 500 GB and 1 TB,
    2000 cartridges T10000C with 5 TB)
  • Maximum capacity: 33 Petabytes
    (6600 cartridges with 5 TB)
  • Tape drives: 28
    (8 x T10000A, 12 x T10000B , 8 x T10000C )
  • Transfer rate: up to 240 MB/sec (T10000C) and 120 MB/sec (T10000B/A)

• 1 STK Streamline SL8500
  • Actual capacity: 22.0 Petabytes
    (7000 cartridges T10000 Standard 1 TB,
    3000 cartridges T10000C with 5 TB)
  • Maximum capacity: 50 Petabytes
    (10000 cartridges with 5 TB)
  • Tape drives: 20
    (12 x T10000B , 8 x T10000C )
  • Transfer rate: up to 240 MB/sec (T10000C) and 120 MB/sec (T10000B/A)

Totals

• Actual capacity: 36.6 PB
• Maximum capacity: 80 PB
• Tapes: 16600
• Tape drives: 48
• Libraries: 2

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The tape libraries serve as second level in the storage hierarchy for three central services.

• Backup/Restore of data

• Long term archival of data

• Migration of active (online) data to less expensive storage media

  User data in the archive file systems of the JUGENE ($ARCH), JUROPA ($GPFSARCH) and JUDGE systems is automatically migrated to tape by the HSM (Hierarchical Storage Manager) component of the TSM (Tivoli Storage Manager). The selection criteria for the migration are age and size of a file. The user data will be recalled automatically and transparently for the user when they are accessed.

  Project related data from the dCache-System is automatically migrated to tape by the TSM-HSM API interface of the Pool servers. The data will be recalled automatically and transparently for the user when it is accessed.