What is Virtualization?
Virtualization allows a single physical resource (such as a server, operating system, application, or storage device) to function as multiple logical resources. Implementation of virtualization results in a significant reduction in hardware and maintenance costs. Virtualization solutions also create an environment for simplified business continuity in the datacenter. Server, storage and network virtualization are introduced here. Please go to the V Solutions web page to see information on all our solution areas.
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Server Virtualization
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Technology allows for the consolidation of several physical computers, each running a single OS and application(s), to fewer physical computers running one or more "Virtual Servers" on each physical computer.
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Virtual servers (also known as Virtual machines) include the complete OS (usually MS Windows or Linux) and the application(s) that run on the OS.
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Example: 20 physical computers reduced to 4 physical computers, each with 5 Virtual servers (OS and application).
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Latest technology allows Virtual Servers to migrate between physical computers (nodes) depending on performance or business continuity requirements.
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Storage Virtualization
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Storage virtualization is the pooling of physical storage from multiple network storage devices into what appears to be a single storage device that is managed from a central console.
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Storage virtualization is commonly used in storage area networks.
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Storage Area Networks (SANs) are usually connected to servers via Fibre Channel or other high-speed link, allowing storage performance to equal direct-attach storage.
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SANs or other network-based storage systems are key components for server virtualization.
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Network Virtualization
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Network virtualization is a method of combining the available resources in a network by splitting up the available bandwidth into channels.
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Each channel can be assigned (or reassigned) to a particular server or device in real time.
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Virtualization disguises the true complexity of the network by separating it into manageable parts that can be used by other virtualized assets (eg. Servers and Storage).
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Virtual Technologies transforms IT infrastructure by reducing physical assets and cost while simplifying systems management and enhancing business continuity.
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