In an out-of-band SAN virtualization system, the virtualization appliance maintains metadata, and the agents inside the kernel of servers use that data to supply virtual storage devices and to perform the mapping of I/O address. A design of an out-of-band SAN virtualization system based on Windows NT volume manager driver, and its underlining technologies were presented in this paper. It shows ...

open source and virtualization: twin trends to drive customer value executive summAry Virtualization is one of the hottest topics in IT today. InfoWorld named it as one of the top technology trends of 2007, while the Gartner Group identified virtualization as one of the four key technologies to drive technology further into business. Recognizing virtualization’s potential benefits, many IT orga...

Based on the concepts of Virtual Corporation and Gradual Virtualization, we develop an instrument to measure the degree of virtualization (DV) of organizations. Virtual corporations are networks of independent companies, who cooperate to satisfy customer needs by combining their distinct core competencies. Hence, an instrument to measure the DV of a network has to integrate characteristics of c...

The majority of recent high-profile work in peer-to-peer networks has approached the problem of location by abstracting over object lookup services. Namespace virtualization in the overlay layer provides load balance and provable bounds on latency at low costs. We contend that namespace virtualization comes at a significant cost for applications that naturally describe their data sets in a hier...

Large-scale data centers leverage virtualization technology to achieve excellent resource utilization, scalability and high availability. Although virtualization technology has the advantages such as fault isolation, environmental isolation and security isolation, current virtualization techniques do not have effective performance isolation among virtual machines. The hidden resource competitio...

Cloud computing is the fastest growing technology in the IT world. The technology offers reduced IT costs and provides on the demand services to the individual users as well as organizations over the internet. The means of cloud computing is obtained by the virtualization of the resources such as hardware, platform, operating system and storages devices. Virtualization permits multiple operatin...

Few issues in the IT arena are regarded with more interest and passion than virtualization. Virtualization refers to technologies designed to provide a layer of abstraction between computer hardware systems and the software running on them. Here, we are discussing the key concepts of virtualization if you want to implement the virtualization within your environment. Many different vendors have ...