This white paper explains the technical terms of power factor, crest factor, and surge factor. The use of these terms in specifying UPS is explained.

This white paper explains the technical terms of power factor, crest factor, and surge factor. The use of these terms in specifying UPS is explained.

The first decade of the 21st century was one of rapid growth and change for data centers. For most of the decade, data center managers were forced to react to rapid, continuous changes dictated by the capacity and availability requirements of their organizations, and the density of the equipment being deployed to meet those requirements. The ten steps outlined in this paper provide a systematic approach to building the foundation for data center infrastructure management by deploying and leveraging measurement, intelligent controls and centralized monitoring and management. Data centers employing these 10 prescribed point solutions for infrastructure performance monitoring stand to gain an operational, strategic and transformative advantage for their enterprise or business.

The first decade of the 21st century was one of rapid growth and change for data centers. For most of the decade, data center managers were forced to react to rapid, continuous changes dictated by the capacity and availability requirements of their organizations, and the density of the equipment being deployed to meet those requirements. The ten steps outlined in this paper provide a systematic approach to building the foundation for data center infrastructure management by deploying and leveraging measurement, intelligent controls and centralized monitoring and management. Data centers employing these 10 prescribed point solutions for infrastructure performance monitoring stand to gain an operational, strategic and transformative advantage for their enterprise or business.

The strategic business importance of today’s data center requires a more complex and thoughtful approach to environmental control planning than ever before. Intelligent control to maintain the data center environment within acceptable ranges for temperature and humidity is essential for efficient data center operation, integral to protecting the significant financial investment in computer and network technology, and key to preventing downtime that can cost millions and drive away customers. As energy costs rise and the need to address climate change grows, energy efficiency is becoming a top criterion when choosing a data center environmental control solution. According to a 2008 Digital Realty Trust survey of senior data center decision-makers, power usage of data centers (average kW use per rack) jumped 12 percent from 2007 to 2008. Looking back further, the Uptime Institute reports data center energy use doubled between 2000 and 2006 and predicts it will double again by 2012.

The strategic business importance of today’s data center requires a more complex and thoughtful approach to environmental control planning than ever before. Intelligent control to maintain the data center environment within acceptable ranges for temperature and humidity is essential for efficient data center operation, integral to protecting the significant financial investment in computer and network technology, and key to preventing downtime that can cost millions and drive away customers. As energy costs rise and the need to address climate change grows, energy efficiency is becoming a top criterion when choosing a data center environmental control solution. According to a 2008 Digital Realty Trust survey of senior data center decision-makers, power usage of data centers (average kW use per rack) jumped 12 percent from 2007 to 2008. Looking back further, the Uptime Institute reports data center energy use doubled between 2000 and 2006 and predicts it will double again by 2012.

A number of options are available to facilities professionals looking to improve cooling efficiency and reduce resources consumed by their data centers. Beyond implementing basic measures such as sealing moisture out of the data center and improving air flow, aisle containment to prevent the mixing of hot and cold air stands out as a method that can dramatically reduce energy costs, minimize hot spots and improve the carbon footprint of data centers. While either hot aisle or cold aisle containment systems can be installed and are both capable of increasing efficiency and cooling today’s high heat data centers, meaningful differences exist in how they function and are implemented. This paper reviews both approaches and concludes that cold aisle containment is the superior solution. Cold aisle containment can be used with or without conventional raised floor cooling. It is easily retrofitted into existing raised floor data centers and works in tandem with the raised floor as well as with extreme density cooling systems to produce highly efficient cooling solutions. By integrating the cold aisle containment with the cooling system operation, optimal performance and energy efficiency will be achieved.

A number of options are available to facilities professionals looking to improve cooling efficiency and reduce resources consumed by their data centers. Beyond implementing basic measures such as sealing moisture out of the data center and improving air flow, aisle containment to prevent the mixing of hot and cold air stands out as a method that can dramatically reduce energy costs, minimize hot spots and improve the carbon footprint of data centers. While either hot aisle or cold aisle containment systems can be installed and are both capable of increasing efficiency and cooling today’s high heat data centers, meaningful differences exist in how they function and are implemented. This paper reviews both approaches and concludes that cold aisle containment is the superior solution. Cold aisle containment can be used with or without conventional raised floor cooling. It is easily retrofitted into existing raised floor data centers and works in tandem with the raised floor as well as with extreme density cooling systems to produce highly efficient cooling solutions. By integrating the cold aisle containment with the cooling system operation, optimal performance and energy efficiency will be achieved.

As rack densities rise, cooling systems play an increasingly critical role in protecting sensitive IT systems and maintaining system availability. Using precision cooling and the SmartAisle™ containment system from Emerson Network Power can help IT organizations efficiently handle heat loads and create a cost-effective data center infrastructure.

As rack densities rise, cooling systems play an increasingly critical role in protecting sensitive IT systems and maintaining system availability. Using precision cooling and the SmartAisle™ containment system from Emerson Network Power can help IT organizations efficiently handle heat loads and create a cost-effective data center infrastructure.