Virtualization & Cloud Computing

/Virtualization & Cloud Computing

Networking in the Virtual World


Networking in the Virtual World Networking in the Virtual World In the figure, we have two VMs. One is a Web server and the other is an online store. In the traditional network, these services would be located in two different physical servers requiring network connectivity. Since these VMs are all loaded onto the same standard server over a hypervisor, they make up a small self-contained network. Included in the many roles of a hypervisor is that of providing a switching function called a virtual switch (vSwitch), which is a software version of an Ethernet switch. This enables communication [...]

Networking in the Virtual World 2019-02-09T17:53:24+00:00

Functions of Hypervisor


Functions of Hypervisor Functions of Hypervisor The hypervisor’s responsibilities are more extensive than it might seem. In fact, it may be the most important concept in virtualization. It functions as a software module that provides mapping between the physical networking environment. Functions of the hypervisor are as follows: 1. Create VMs: The hypervisor describes how the physical networking environment can be partitioned into multiple VMs. It manages these interfaces and presents to the customer the appearance of the availability of an autonomous networking environment. This role is primarily focused toward the application software. 2. Allocation of Hardware (HW) Resources: [...]

Functions of Hypervisor 2019-02-09T17:10:38+00:00

Virtual Machines & Hypervisor


Virtual Machines (VMs) & Hypervisor Virtual Machines & Hypervisor The virtualization software has the role of deploying software-based Virtual Machines (VMs). The idea is to create a software version of a hardware-based server or application. Though the functionality may be identical, the way it interworks with other functions is quite different. The decision to hard-code the application into the hardware is a permanent decision. The Virtual Machine behaves and operates almost identical to its stand-alone purpose-built hardware-based server “twin.” The hypervisor has multiple roles, one of which is to translate the individual guest OS instructions into the equivalent instructions [...]

Virtual Machines & Hypervisor 2019-01-30T20:00:03+00:00

Why Virtualization?


Why Virtualization? Before virtualization, there are two servers. The hardware functionality is managed by an Operating System (OS), referred to here as the host OS ( or the native operating system for the hardware). The OS provides the rules and procedures that enables an application to communicate through a network. In the scenario, the application shown has full use of the hardware resources. When we apply virtualization, the architecture changes. A single server has been logically partitioned into two independent Virtual Machines (VMs), VM1 and VM2. What is common between the two VMs is the physical hardware. What’s different [...]

Why Virtualization? 2019-01-19T14:22:43+00:00
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