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Using CFD as a Guide When Making Changes to the Data Centre.

Using CFD as a Guide When Making Changes to the Data Centre. Nagy Daniel Senior IT Manager Magyar Telekom Technical Unit, IT Operations Directorate. Overview. Company overview Problems faced in modern datacentres The benefits of using CFD simulation to control problems

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Using CFD as a Guide When Making Changes to the Data Centre.

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  1. Using CFD as a Guide When Making Changes to the Data Centre. Nagy Daniel Senior IT Manager Magyar Telekom Technical Unit, IT Operations Directorate

  2. Overview • Company overview • Problems faced in modern datacentres • The benefits of using CFD simulation to control problems • Introduction to 6SigmaDC • Case study: Adatpark • Introduction • Issues identified • Hot-spot mitigation techniques • Review • Conclusions

  3. Magyar Telekom Group at a glance Integrated operations in Hungary, Macedonia and Montenegro • leading telecommunications service provider in all three countries • leading SI/IT service provider in Hungary EUR 2.5bn market capitalization Stock exchange listings • listed on NYSE and Budapest Stock Exchange • delisting from NYSE to start before end 2010 Majority owned by Deutsche Telekom (59.2%) Market shares (Q3 2010): • TV: 28% • Mobile: 45% • Wireline broadband: 36% • Mobile broadband: 48%

  4. Problems Faced in Modern Datacentres • Maintaining a balance of space, power and cooling • Maximising capacity in a fixed infrastructure • Selecting suitable cabinet layouts • Managing differing IT equipment power and airflow requirements • Managing the risk of thermally induced downtime • Optimising an already populated room • Tackling hotspots in an existing datacentre

  5. The Benefits of using CFD Simulation to Identify Problems • CFD simulation offers a non intrusive approach • Analyse problems in a non critical model. • Maximise capacity • Extending life of existing facilities

  6. Introduction to 6SigmaDC • 6SigmaDC offers a suite of software programs designed specifically for datacentre use • 3D models of datacentres can be built with detail down to the server level

  7. Case Study: Adatpark - Modelling phase • 400m2 floor • 3 engineers • 3D modelling: 2 days • Equipment import: 1 day, thanks to: • 6sigmaDC – SM7 integration • Scripted CMDB updates • Calibration: 2 days • Total: 5 days

  8. Case study: Adatpark - Problems • Equipments were imported from HP SM7 based CMDB • The model was used to highlight existing hot spots as well as areas of potential high temperature. Red cabinets have over-temperature equipment in them. Orange racks contain equipment that is close to overheating

  9. Case study: Adatpark – Blanking Issues • Air to inlet of severs was being drawn through gaps in blanking. • Unused U-slots and Mounting rail side gaps were sealed. • Inlets and outlets of Cisco units were segregated.

  10. Case study: Adatpark – Results of Blanking • Over temperature equipment has been reduced. • Including the circled Cisco cabinet. • Many server cabinets are still close to the overheat limit. • Baseline Produced by Future Facilities Ltd

  11. Case study: Adatpark - Grille positioning Issues • There are floor grilles located outside of the equipment aisles – losing cool airflow • Floor grilles were arranged more systematically

  12. Case study: Adatpark – Results of Grille Changes • Overheating equipment has been eliminated • Some cabinets are still close to their overheat limit • Previously Produced by Future Facilities Ltd

  13. Case study: Adatpark - Removal of Hot Air • The result plane shows air temperature 1m above the facility raised floor • There are areas where hot air is not effectively removed • Hot air is trapped in the rear of some cabinets

  14. Case study: Adatpark – Chimney Cabinets • In this situation the restructure of equipment was impractical. • Chimney cabinets were suggested as a way to direct hot air from servers into the ceiling void. • Cabinets having difficulty removing hot air were fitted with chimney attachments

  15. Case study: Adatpark – Results of Chimney Cabinet Implementation • Only one piece of equipment remains in the borderline temperature condition • No equipment is overheating. • Previously Produced by Future Facilities Ltd

  16. Conclusions • Use of CFD minimise overheat risk and maximise the potential of the datacentre. • Other opportunities to utilise CFD and the Virtual Facility during a datacentre’s lifespan: • Design - Balancing space, power and cooling • Design - Selecting suitable cabinet layouts • Operation - Managing deployment of IT equipment based on power and airflow requirements • Operation - Managing the risk of thermally induced downtime • Extended Life - Optimising an already populated room • Extended Life - Maximising capacity in a fixed infrastructure Produced by Future Facilities Ltd

  17. Thank You!

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