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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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