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  • 1. Citadel100 Case Study “Keeping Business Always Online” The electronic version of this document is the latest version. Page 1 of 7 Rev: 4
  • 2. Citadel100 – Simulated Facility Power Outage Table of Contents Facility Power Test ......................................................................................................................... 3 Timelines ............................................................................................................................................ 4 Graphs .................................................................................................................................................. 5 The electronic version of this document is the latest version. Page 2 of 7 Rev: 2
  • 3. Citadel100 – Simulated Facility Power Outage FACILITY POWER TEST Noel, For your information, we will test the complete power support system for the facility tomorrow, July 18. This will entail a simulation of a full utility outage. We have been planning this operation since last August and have agreed a window for tomorrow's date with all our customers. Specialist contractors in attendance will be ESB, Mercury, F G Wilsons, Hitec, Schneider, Anord and our own team. The operation starts at 07:00 and power restoration is scheduled for 15:30. We have full confidence in our resilient design and will notify you when complete. The above mail was the final notification issued in a process that had been in the planning stages for almost 12 months. In any environment testing support equipment is important, in a Data Centre such testing is critical. The continual monitoring, measuring, calibration and maintenance of critical power paths in a Data Centre are a constant, second by second occurrence. The proving of this support path is only achieved in one way – total removal from the National Grid. Citadel100’s world class Data Centre in the National Digital Park, Citywest, Dublin carried out such a test on July 18th, 2007. The actual test was preceded by months of preparation, client engagements and liasing with all the third party personnel that were required in order to ensure total support for any eventuality. The operation itself began with a 07:00 briefing to all persons involved and the assignment of specific tasks to individuals. Following this, each person took up his or her post and awaited confirmation that the first phase had begun. Phase 1 involved shutting down T7 at 07:31. T7 is the mechanical transformer feeding chillers, pumps, cooling units and controls. The power down was effectively recognised by the Energy Management Systems as a power outage triggering the support systems to take load by energising the Generation sets. The electronic version of this document is the latest version. Page 3 of 7 Rev: 2
  • 4. Citadel100 – Simulated Facility Power Outage The design of the plant allows cooling to be dropped during a power outage and to restart when Diesel generation has synchronised and taken up full load. Cooling was restored at 07:34. The remainder of the transformers, which feed the critical power to the data suites, were powered down in numerical sequence. During this period there was, as designed, zero impact on any of our client’s critical equipment. In order to fully test the plant we remained on Generator support until 15:30 at which time Utility supply was restored. It was also important to study the impact of power restoration and to note the operation of the control systems as utility power returned to normal. The outcome was the complete proving of the entire Facility and confirmation that the design and implementation was totally resilient. The result was enhanced client confidence and most importantly keeping our business always online. From: Lyons, David Sent: 18 July 2007 16:40 To: Carroll, Denis; Hennessy, Karl; Mc Donald, George Cc: McCaul, Sinead; Irwin, Philip; Hurley, Brian; Meaney, Michael Subject: MV change Denis, Karl, George, Just a quick email to thank you for all your efforts in ensuring that there was no impact to HP customers during the MV settings change today, the transition from ESB to Generator power and back was as seamless as could be possibly expected. If you could also pass on our thanks to all facilities staff involved too. Regards, David Lyons Service Business Support Manager TIMELINES July 18th, 2007. 07:00 – Team Briefing. July 18th, 2007. 07:31 – T7 shut down. July 18th, 2007. 07:32 – Gensets energised. July 18th, 2007. 07:34 – Cooling restored. The electronic version of this document is the latest version. Page 4 of 7 Rev: 2
  • 5. Citadel100 – Simulated Facility Power Outage GRAPHS The following graphs are snapshots from a single power supply showing 1. Loss of Utility Power. 2. Take – up by Generator supply. 3. Uninterrupted power supply to client equipment. A) This graph shows the utility power feed from transformer 4A. The electronic version of this document is the latest version. Page 5 of 7 Rev: 2
  • 6. Citadel100 – Simulated Facility Power Outage B) This graph shows the power feed from the generators to breaker 4A following utility loss. The electronic version of this document is the latest version. Page 6 of 7 Rev: 2
  • 7. Citadel100 – Simulated Facility Power Outage C) This graph shows the power in the data suite – no break in power during the exercise. The electronic version of this document is the latest version. Page 7 of 7 Rev: 2