Servers occupy a place in computing similar to that occupied by minicomputers in the past, which they have largely replaced. The typical server is a computer system that operates continuously on a network and waits for requests for services from other computers on the network. Many servers are dedicated to this role, but some may also be used simultaneously for other purposes, particularly when the demands placed upon them as servers are modest.
The technologies examined reduce operational expenses (OpEx), not capital expenses (CapEx) that has traditionally been the focus of virtualization. Many companies implemented virtualization with the goal of saving money in the form of fewer servers to buy (with a side benefit of reducing the footprint of the servers and lowering the required power and cooling). Most of the savings were in capital, but do not expect the same with many of the technologies listed here, because some may even require some additional capital expenditures (at least for software) in order to save on the day-to-day operations of IT. The bigger cost in running an IT department is in the OpEx category anyway, so savings there are recurring savings.
This planning guide provides best practices for virtualizing Citrix XenApp. Even though these best practices are based on the Hosted Shared Desktop model, they are still relevant in a non-desktop model where users only connect to published applications without the desktop interface.
With the prospect of sending custom hardware designs directly to factories, many web hosts might be wonderingif they can take advantage of an open-source approachto hardware. But when does it make sense for web hosts to seriously consider Open Compute?
As companies continue to absorb the flow of electronic data in astronomical quantities, greater attention is being paid to the infrastructure that holds the data and the escalating costs of its management.
The data center landscape is changing quickly, creating new options for IT architecture and physical facility design. When deciding if a containerized or modular solution is the right option for your data center, you need to consider the factors in this guide.
Todayís data centers are taking the heat both literally and figuratively. With equipment generating enormous amounts of thermal energy, data centers continue to shovel operational funds into cooling as energy costs steadily climb.
As the cost of power continues to rise while the demand for computing capacity grows at an unprecedented rate, balancing the costs of cooling equipment against the need for uninterrupted uptime presents a constant challenge.
Once businesses understand the value of uptime, they can substitute data for instinct when calculating operational expenses. This on-demand webinar will provide simple steps businesses can use to produce hard numbers and discuss the ways in which they can apply that data to evaluate and justify spending.
DDoS, cache poisoning, footprinting, oh my! Who knew that there were so many ways to threaten the security of your DNS? Find out all of the scary details about these attacks and what you can do to prevent them.