Archival Storage At LANL Past, Present and Future - Los Alamos ...

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• HPSS 8.1 HPSS Future at LANL – Primary focus is another order of scalability in total throughput. Also oriented towards small files. – Multiple core servers to distribute name space load. – Use partitioned capabilities of DB2 to distribute and get parallel performance improvements in metadata operations. Believe DB2 provides advantages here. – Possible client side caching with lease type lock management. – 2009 time frame. – Initial discussions begun but at very high level.
• Clients select Core Servers based on current load • File metadata is cached at the client and updated periodically, or when invalidated by a Core Server • Lease based locking is used to provide metadata cache coherency, unix file open semantics and, unix file range locking semantics
Page 1 and 2: Archival Storage At LANL Past, Pres
Page 3 and 4: HSM: Hierarchical storage managemen
Page 5 and 6: Tape is much less expensive • In
Page 7 and 8: • LANL has been involved in archi
Page 9 and 10: Common File System • HSM based on
Page 11 and 12: High Performance Storage System •
Page 13 and 14: High Performance Storage System •
Page 15 and 16: HPSS experience at LANL • Very re
Page 17: HPSS Future at LANL • Complete PS
Page 21 and 22: Future challenges for archival •
Page 23 and 24: Future challenges for archival •

Archival Storage At LANL Past, Present and Future - Los Alamos ...

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