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Institute for Advanced Simulation (IAS)
Jülich Supercomputing Centre (JSC)

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Tape Libraries (Automated Cartridge Systems)

SL8500 FrontviewCopyright: FZ Jülich

SL8500 RoboticCopyright: FZ Jülich

SL8500 ElevatorCopyright: FZ Jülich

SL8500 CartridgeCopyright: FZ Jülich

SL8500 LibraryCopyright: FZ Jülich

 

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

  • Backup and Restore of data
  • Long term archival of data

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

    • User data in the GPFS archive file systems of the HPC-systems are automatically migrated to tape by the HSM (Hierarchical Storage Manager) component of 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 in the dCache-System are 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 they are accessed.

Users of the HPC systems, workstations and PCs have access to their data (Backup, Archive, Migration) in the libraries during 24 hours a day and 7 days a week.

  

Total Numbers
Actual capacity~ 99 PB
Planned capacity (in 2016) 106 PB (12000 x 8.5 TB + 4600 x 1 TB)
Maximum capacity (theoretical)141 PB (16600 x 8.5 TB)
Tapes16600
Tape drives48
Libraries2 (at different locations in JSC)

 

Hardware Characteristics of the Tape Libraries Complex

1 STK Streamline SL8500

  • Actual capacity: ~ 44 PB

    • 5000 cartridges T10000T2, each 8 - 8.5 TB with T10000D
    • 1600 cartridges T10000T1, each 1 TB with T10000B

  • Tape Slots: 6600

  • Tape drives: 24

    • 20 x T10000D
    • 4 x T10000B

  • Transfer rate:

    • T10000D: up to 240 MB/sec
    • T10000B: up to 120 MB/sec

1 STK Streamline SL8500

  • Actual capacity: ~ 55 PB

    • 6000 cartridges T10000T2, each 8 - 8.5 TB with T10000D
    • 4000 cartridges T10000T1, each 1 TB with T10000B

  • Tape Slots: 10000

  • Tape drives: 24

    • 20 x T10000D
    • 4 x T10000B

  • Transfer rate:

    • T10000D: up to 240 MB/sec
    • T10000B: up to 120 MB/sec

1 Management Server ( Sun Server X3-2, X86 64-bit)

  • Intel Xeon Processor CPU E5-2609, 4 cores, 2.4 GHz, 8 GB Memory
  • Software: Oracle Linux 6.3, ACSLS 8.3, SLC 6.25
Last updated: 14 Jul 2015

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