Many IT organizations deploy servers that are only running at a fraction of their capacity, often because they are dedicating their physical server to a specific application. This is usually an inefficient mechanism because there is an excess capacity that is not being consumed, which leads to higher operating costs. Virtualization can benefit your organization in several ways, with a single server, you are able to create several virtual machines. Virtualization enables more efficient utilization of computer hardware and enables a greater return on an organization’s hardware investment. Virtualization uses software to create an abstraction layer over the physical hardware. In doing so, it creates a virtual compute system, known as virtual machines (VMs). This allows organizations to run multiple virtual computers, operating systems, and applications on a single physical server. Simply put, it is a more efficient use of the physical computer hardware; this, in turn, provides a greater return on a company’s investment.
Managing IT can be quite costly for some organizations, in time and resources. By virtualizing your server infrastructure, you can help lessen your hardware and maintenance costs and lower your company’s energy bill. In addition to cost savings, virtualization has other benefits, including improving staff productivity, business continuity and disaster recovery. It also enables your IT team to focus on more strategic projects that can help speed time to market for critical products or services your business is developing to remain competitive.
A virtual machine (VM) is the base unit of VMware virtualization. A VM is a software-based representation of a physical computer. Each VM includes a configuration file that stores the VM’s settings, a virtual disk file that is a software version of a hard drive, and a log file that keeps track of the VM’s activities, including system failures, hardware changes, migrations of virtual machines from one host to another, and the VM’s status. VMware offers various tools for managing these files. A virtual machine can’t interact directly with a physical computer. It needs a software layer called a hypervisor to connect the physical hardware upon which it runs.
A hypervisor is a thin layer of software that interacts with the underlying resources of a physical computer (host) and allocates those resources to other operating systems (guests). The guest OS requests resources from the hypervisor. Hyper-V specifically provides hardware virtualization. That means each virtual machine runs on virtual hardware. Hyper-V lets you create virtual hard drives, virtual switches, and several other virtual devices all of which can be added to virtual machines. Microsoft's Hyper-V is a hypervisor product that allows you to run multiple operating systems on the same server or client computer.
Virtualization is software that makes computing environments independent of physical infrastructure. Emtech offer virtualization solutions covering specific data center tasks or end user-focused, desktop virtualization scenarios. Better-known examples include VMware, which specializes in server, desktop, network, and storage virtualization and Microsoft, whose Hyper-V virtualization solution ships with Windows and focuses on virtual versions of server and desktop computers.