managed cloud hosting

managed cloud hosting - In computer networking , cloud computing is computing that includes a large number of computers connected through a communication network such as the Internet, similar to utility computing . In science , cloud computing is a synonym for distributed computing over the network , and hence the ability to run programs or applications on multiple connected computers simultaneously.

Network services that appear to be provided by the real server hardware and are actually served up virtual hardware , simulated software running on one or more real machines, often referred to as cloud computing. These virtual servers are not physically exist , and therefore can be moved and scaled up or down on the fly without affecting the end-user , somewhat like a cloud becomes more or less without being a physical object . In common parlance , the term "cloud" is essentially a metaphor for Internet.

Marketers further popularized the phrase " in the cloud " to refer to the software , platforms and infrastructure , which are sold " as a service " that is remotely via the Internet. Typically , the seller has actual power-hungry servers that receive products and services from a remote location , so end users do not have to ; they can simply log on to the network without having to install .

The basic model of cloud computing services are known as software as a service , platform as a service and infrastructure as a service . These cloud services can be offered in the public, private or hybrid network. Google, Amazon, Oracle Cloud, Salesforce, Zoho and Microsoft Azure cloud of some well-known manufacturers.

Oblachnye computing relies on the sharing of resources to achieve consistency and economies of scale , similar utilities (eg electricity ) for network. At basis of cloud computing is the broader concept of converged infrastructure and general sluzhb.Oblako also focuses on maximizing the efficiency of shared resources. Resources Cloud, as a rule, not only shared by multiple users , but also dynamically redistribute the demand. This may work to allocate resources to users.

For example, cloud computer tool that serves European users during European business hours of the particular application ( eg e-mail ) may reallocate the same resources to serve the North American users in North America business hours with other applications (eg , Web server) . This approach should make maximum use of the computing power , thereby contributing to reducing environmental damage and have less power , air conditioning , Rackspace , etc. Required to perform various functions.

With cloud computing , multiple users can access one server to retrieve and update their data without having to purchase licenses for any prilozheniy.Termin " moving to the cloud " also refers korganizatsii depart from the traditional model of CAPEX ( buy special equipment and amortize it over a period of time) to model OPEX ( use a common cloud infrastructure and pay as one uses it )

Proponents argue that cloud computing allows companies to avoid the initial infrastructure costs , and focus on projects that differentiate their business and not also claim infrastructure.Proponents that cloud computing enables businesses to get their applications up and running faster , with improved manageability and less maintenance , and enables IT to quickly configure the resources to meet the varying and unpredictable business demand.

Cloud providers typically use model "Pay As You Go". This can lead to unexpectedly high costs if administrators do not adapt to the cloud model pricing.