CASE STUDIES
Data Centre reduces energy costs by 40%
O
penwave Mobility is a recognised leader for mobile, data and cloud-based capabilities. Mobile video consumption is growing at a compound annual growth rate (CAGR) of more than 116% and Openwave Mobility’s solutions empower mobile operators to manage and monetize this traffic. Based on the industry’s most scalable NFV platform, Openwave Mobility’s solutions alleviate RAN congestion, create new revenue opportunities and unifies subscriber data. The company has deployed all-IP traffic solutions with over 40 of the world’s largest service providers, and today provides services utilized by more than 1.5bn subscribers. Openwave Mobility has built a robust portfolio of Intellectual Property, which is growing month by month and today has a global presence headquartered in Silicon Valley California. Openwave Mobility is owned by Marlin Equity Partners, a leading investment firm with over two billion dollars of capital under management. When Openwave Mobility’s Belfast site decided to replace their existing data centre cooling system due to its age they turned to their regular supplier – Coolair Refrigeration & Air- conditioning (NI) – for the replacement. Timothy McCallan – Openwave’s Infrastructure Manager explains “There was an existing air- con solution in our primary datacentre that was 11years old and no longer able to provide
sufficient capacity to cool the space. We had been suffering frequent compressor failures and with only three outdoor systems there was insufficient redundancy and cooling capacity to be effective in our datacentre environment. In addition, the running costs of the old units running continually at maximum capacity was proving very inefficient.”
Ben Rodgers from Coolair further explains “Coolair have looked after the Openwave site for several years. We were finding the old equipment problematic, and due to the set up if we lost one system we lost a lot of indoors causing hot spots.” Coolair, based in Templepatrick, County Antrim is a specialist in steam humidifiers and close control environments, dehumidifiers, ultra-low temperature cabinets, ice makers, cold rooms, water chillers, comfort air conditioning and car air-conditioning.
Openwave’s project brief was simple: to provide an efficient, reliable and cost-effective solution to the aging and problematic systems on site, with energy efficiency being a priority. After reviewing the options, Coolair turned to Fujitsu as Ben Rodgers describes: “We have worked closely with Fujitsu on several projects and chose them again on this project due to the trusted reliability and technical support. Five VRF systems in total with three indoors per system were selected, staging the indoors in such a way
that each server rack will have more than one system cooling it to prevent hot spots in the event of failure, and, added additional duty, with the total cooling capacity being 210kw. Mechanical ventilation was added alongside the Fujitsu VRF, providing free cooling to help with the heat load and to further reduce the running costs.” Fujitsu’s technical manager Martyn Ives explains the solution selection: “Efficiency was key, therefore Fujitsu’s highly efficient VIII was selected after running costs were compared against the existing system.”
The installation was carried out in the cooler months between September and February, with the outdoor units being piped into the room before doing the switch over, meaning Openwave were only ever 3-4 days without full capacity. kWh meters were installed to monitor power consumption, and thus providing the end- user with the proof that the newly installed VRF systems were as efficient as the design calculations indicated. Based on a HAWK meter reading, the systems were sitting at 35 KVA load for the datacentre air-conditioning. Openwave were able to confirm a monthly saving of £1.4k which is a massive 40% reduction. Openwave’s Timothy McCallan was delighted with the result, “Coolair were able to review our requirements together with Fujitsu technical staff and produce a comprehensive proposal containing multiple Fujitsu high-efficiency units. This was completed in three phases over a number of months and without any downtime for the five hundred servers. We now have a system where there is sufficient capacity to cope with multiple system failures and combined with a lower ratio of outdoor to indoor units. The Coolair staff were very responsive to any of our concerns throughout the project and mindful of the high- value equipment that had to remain functional throughout.”
Fujitsu’s Martyn Ives concluded “The was a fantastic project to be involved with. Coolair is great to work with, and their customer (Openwave Mobility) is delighted with all aspects of the project solution and execution, particularly with the lower energy costs which they can benefit from month on month, to say nothing of having newer, and more reliable equipment”.
66 September 2017
www.acr-news.com
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