AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Virtualization11/23/2023 10 A system with 35 virtual servers on 4 physical host servers saved over $280,000 in total savings, from savings of: In a 2010 study, Southwestern Illinois College performed a detailed 3-year total cost of ownership analysis for a 35 server upgrade with and without virtualization (see table below).In a 2007 study, the University of Santa Cruz used virtualization to run 54 virtual servers on 8 physical hosts, reducing peak demand by 20 kW and saving $22,000 in energy annually.According to the Uptime Institute, decommissioning a single 1U rack server can annually save $500 in energy, $500 in operating system licenses, and $1,500 in hardware maintenance costs. Virtualization enables the repurposing and decommissioning of some existing servers.One watt-hour of energy savings at the server level results in roughly 1.9 watt-hours of facility-level energy savings by reducing energy waste in the power infrastructure (power distribution unit, UPS, building transformers) and reducing energy needed to cool the waste heat produced by the server. Virtualization enables you to use fewer servers, thus decreasing electricity consumption and waste heat.A 2012 NRDC paper entitled Small Server Rooms, Big Energy Savings 6 included an informal survey of 30 small businesses (ranging from 3 to 750 employees) and found that only 37% used virtualization. However, virtualization is less common in small data centers.5 Of those, the ratio of virtual servers to physical host server averaged 6.3 to 1 and 39% of all servers were virtual. A 2011 survey of over 500 large enterprise data centers found that 92% use virtualization to some degree. Due to these benefits, virtualization has become commonplace in large data centers.Some virtualization solutions also have built-in resiliency features, such as high availability, load balancing and failover capabilities. With virtualization, you can move entire systems from one physical server to another in just a few seconds to optimize workloads or to perform maintenance without causing downtime. In addition, it speeds up disaster recovery efforts because virtual servers can restart applications much more rapidly than physical servers. Virtualization improves scalability, reduces downtime, and enables faster deployments.Therefore, instead of operating many servers at low utilization, virtualization combines the processing power onto fewer servers that operate at higher total utilization. Multiple virtual servers can work simultaneously on one physical host server. A "virtual server" is a software implementation that executes programs like a real server. Server virtualization offers a way to consolidate servers by allowing you to run multiple different workloads on one physical host server.2 Another study stated that the one workload, one box approach leads to 90% of all x86 servers running at less than 10% utilization with a typical server running at less than 5% utilization. A 2012 New York Times article cited two sources that estimated the average server utilization rate to be 6 to 12%. 1 The traditional one workload, one box approach means that most servers run at a low "utilization rate" – the fraction of total computing resources engaged in useful work. When taking into account testing/development, staging, and disaster recovery 3 to 5 servers per application may have been typical.
0 Comments
Read More
Leave a Reply. |