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HPSS Tuning & Management

HPSS Tuning & Management. Tom Sherwin Storage Group Leader, SDSC sherwint@sdsc.edu. HPSS at SDSC. 8 servers for disk and tape movers 1 server for HiPPi mover 20 3590 tape drives in 3 STK silos 1.5 TB disk cache 1TB MaxStrat, .5TB SSA SP Switch HPGN - supporting HiPPi, OC12-ATM.

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HPSS Tuning & Management

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  1. HPSS Tuning & Management Tom Sherwin Storage Group Leader, SDSC sherwint@sdsc.edu

  2. HPSS at SDSC • 8 servers for disk and tape movers • 1 server for HiPPi mover • 20 3590 tape drives in 3 STK silos • 1.5 TB disk cache • 1TB MaxStrat, .5TB SSA • SP Switch • HPGN - supporting HiPPi, OC12-ATM

  3. HPSS Load and Usage Statistics • 100TB stored in 9 million files • Average file size: 11MB • ~ 16,000 transactions per day • ~ 250-300GB moved per day • 650GB peak amount of data moved

  4. System Backups • Individual node backups • SFS Backups • Critical! • More than enough disk allocated to transactions • Imported into alternate HPSS system • validate backup sets • perform analysis

  5. Observations • “Tiny” class of service (files < 8k) • Initial drag-testing - SSA and 3590 • HPGN to become central networking focus • STK 9840 drives • Web page for procedures • http://www.sdsc.edu/Storage • focus for operational details

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