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CERN openlab Total Cost of Ownership

11 November 2003 Sverre Jarp. CERN openlab Total Cost of Ownership. Agenda. Day 1 (IT Amphitheatre) Introductory talks: 09:00 – 09:30 Welcome. (W. von Rüden) 09:30 – 10:15 Setting the scene: A Global View of the plans for the LHC Computing Grid – (L.Robertson) 10:15 – 10:45 Coffee break

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CERN openlab Total Cost of Ownership

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  1. 11 November 2003 Sverre Jarp CERN openlabTotal Cost of Ownership openlab 2003

  2. Agenda • Day 1 (IT Amphitheatre) • Introductory talks: • 09:00 – 09:30 Welcome. (W. von Rüden) • 09:30 – 10:15 Setting the scene: A Global View of the plans for the LHC Computing Grid – (L.Robertson) • 10:15 – 10:45 Coffee break • Part 2: • 10:45 – 11:15 Review of calculated cost summary for 2003 (S. Jarp) • 11:15 – 12:00 Estimated LCG Personnel and Materials costs (2004 – 2008) (B.Panzer) • 12:30 – 14:00 Lunch • Part 3 • 14:00 – 14:45 Planning the LCG Fabric at CERN (T. Cass) • 14:45 – 15:30 External Testimony: Michael Levine (Pittsburgh Supercomputer Center) • 15:30 – 16:00 Coffee break • 16:00 – Discussions and conclusion of day 1 (All) • Day 2 (IT Amphitheatre MORNING, 513 1-024 afternoon) • Discussions with HP: • 08:45 – 10:45 One-on-one with HP • Discussions with Intel: • 11:00 – 13:00 One-on-one with Intel • Discussions with IBM: • 14:00 – 16:00 One-on-one with IBM openlab 2003

  3. AIM • Understand • Total Cost of Ownership • “Linux fabric” in the Computer Centre • CPU servers • Disk servers, Tape servers + Silos • To a “sufficient” level of detail • 2003 (July/August) Budget situation • Rather than actual sums across all cost centres • Personnel + Materials • No direct measurement of quality • Nor the fraction of capacity actually in use at a given time openlab 2003

  4. Cost of manpower • Complicated issue • Approach chosen: • Take IT salary budget for staff and fellows • Including direct benefits (pension fund, health care, etc.) • Without counting management overhead • Neither inside IT nor CERN • Actual number: 168.8 KCHF • Excluded: • Associates + Students • In general, paid from the materials budget • Associates: Some do not necessarily spend most of their time at CERN • Students: Avoid very short stays (Summer students) openlab 2003

  5. IT budget categories • In the TCO exercise the total IT budgets were initially split into 9 categories: • Computer Centre Services: • Cost of the Physics Fabric and closely related services, such as internal and external networking, etc. • Grid Development/Deployment • Openlab • Computing Infrastructure (non-physics oriented): • Windows, Mail, Web services, Phone exchange, etc. • Product Support (mainly for Engineers): • Digital electronics, CAD, license office, Solaris support. etc. • Controls for physics experiment • so-called “on-line computing” • Database Services and Applications • Communications Infrastructure for the LHC Accelerator • Divisional Management openlab 2003

  6. IT Division (total) openlab 2003

  7. Box count openlab 2003

  8. Capacity Numbers • Other relevant capacity numbers are: • Total installed PC CPU capacity: • ~1.2 Million SpecInt2000 (SI2K) • CPU capacity purchased by August: • 400 * 1.6 KSI2K = 640 KSI2K • Total disk space: 200 TB • Disk space acquired by August: • 50 TB at required performance (actually: 65 TB) • Tape silos installed: 10 (with 6000 slots each) • Tape drives: • 50 STK9940B (+ 20 STK9840 with low usage) openlab 2003

  9. Cost of Central Services • Batch/Interactive services: • Acquisition costs for batch/interactive servers, software licenses and maintenance • Managed storage: • Tape and disk servers (purchase and maintenance) • Computer Centre Infrastructure: • Various contract staff contracts; Monitoring and Supervision; Remedy • Fabrics: • The budget line only covers the CC upgrade this year. • The two "Operations" lines: • Cover costs associated with the various groups (travel, associates/consultants, workstation purchases, etc.) openlab 2003

  10. Cost of Central Services openlab 2003

  11. Cost of Fabric openlab 2003

  12. Costs beyond the fabric • In many cases non-fabric-related costs dominate • Campus Network: • 2991 KCHF • User Support and Quality Insurance: • 1265 KCHF • Computer security: • 741 KCHF • Etc. • In other words: • The fabric benefits from large demands on other services openlab 2003

  13. CPU part of fabric openlab 2003

  14. Disk/tape part of fabric openlab 2003

  15. Summary • All-in-all: • IT estimates (on average) that it has spent ~(1 + 1) MCHF on basic hardware across • CPU servers • Disk servers + Tape servers • Our calculation shows: • Linux fabric in total: 18.6 MCHF • CPU part: 10.5 MCHF • Disk/tape part: 6.3 MCHF • External networking: 1.8 MCHF • Cost on top of basic hardware: • 14.8 / 2 = 7.4 openlab 2003

  16. Backup openlab 2003

  17. 2003 (replacement) cost • IT main entities openlab 2003

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