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LANL Site Presentation. HPSS User Forum June 2005 Danny Cook. Statistics (Open). Users 2,285 Active users 267 Files 11,360,000 Total TB 482 Accesses/month 216,891 Cartridges 8,371. Statistics (Secure). Users 1327 Active users 310 Files 36,667,000 Total Storage 2.7 petabytes

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lanl site presentation

LANL Site Presentation

HPSS User Forum

June 2005

Danny Cook

statistics open
Statistics (Open)
  • Users 2,285
  • Active users 267
  • Files 11,360,000
  • Total TB 482
  • Accesses/month 216,891
  • Cartridges 8,371
statistics secure
Statistics (Secure)
  • Users 1327
  • Active users 310
  • Files 36,667,000
  • Total Storage 2.7 petabytes
  • Accesses(month) 538,475
  • Cartridges 23084
hpss configuration open
HPSS Configuration (Open)
  • Primary server P 630
  • FTP server (p-615)
  • 6 9840 tape drives, 34 9940A/B tape drives
  • 800 GB SSA and LSI disk
  • 3 disk movers and 14 tape movers(P 615)
  • Data transfer network(Gig-E)
hpss configuration secure
HPSS Configuration (Secure)
  • Primary server P 650
  • 15 9840, 51 9940B, 9 9940A drives
  • SSA and LSI disk(app. 12 TB)
  • 6 disk movers and 30 tape movers.
  • Data transfer network(Gig-E)
current hpss performance
Current HPSS performance
  • Small file insertion rate per user (5/sec).
  • Aggregate(25-30/sec.)
  • File deletion rate per user(25-30/sec.)
  • 4 way tape stripe(9940B): 150-180 MB/sec.
  • 16 way stripe(9940B): 600-650 MB/sec.
  • Non-striped disk : 10-60 MB/sec.
  • Theoretical aggregate in secure should be over 3.5 GB/sec.
future hpss performance
Future HPSS performance
  • Going to new Titanium drives(120 MB/sec.)
  • Looking for post 6.2 enhancements to improve small file performance.
  • PSI parallel tar capability using HTAR. Mark will discuss.
problems and concerns
Problems and concerns
  • DB2 deadlocks in core server(diskspace)
  • RAIT is probably dead. Using delayed second tape copies now.
  • Delays in 6.2. We need this by fall.
  • Memory growth in 5.1. We are not running 5.1 patch.
  • Decreased staffing.
unique features at lanl
Unique features at LANL
  • PSI – home grown interface. Integrated with LSF. Provides multi-node capability. Can configure striping width and number of nodes dynamically based on config files.
  • Local mod to allow selected users to change ownership of files they own.
  • Mercury – allow secure movement of data between systems.
wish list
Wish List
  • Faster small file performance.
  • Small file aggregation.
  • Grid FTP with multi-node capability.
  • Support new Titanium drives.
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