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VMware and Hyper-V are both virtualization softwares, the main difference between them is that in Vmware the hypervisor communicates directly with hardware and all VM's reside on the hypervisor. in hyper-V, the hyper visor uses guest operating system to communicate with hardware so that it depends on guest operating system. both have features for online movement of VM's.
VMware or Hyper V are the virtualization technology which helps to utilized the hardware resource which is unused while having only one server on host machine and we create virtual machines to be run under these software so that hardware resource which are utilized can be used by virtual machine
Microsoft Hyper-V and VMware ESX are hypervisor based solutions. They install directly on the hardware and require no lower level OS beneath them, however their architecture is quite different.
The hypervisor is a critical component of and foundation of virtual infrastructures. Fundamental characteristics of a hypervisor are:
ESX installs a hypervisor on the hardware. It acts as the intermediary between the hardware and any virtual machines running on the server. Hardware device drivers are included in the hypervisor. This is called a direct driver model.
Hyper-V also installs on bare metal. But all management functions and access to hardware is controlled via a “root partition” that runs the Windows Server (or Server Core) 2008 OS. This root partition is actually a special virtual machine, through which hardware I/O requests from child partitions travel via the VMBus architecture. This is called an indirect driver model. So basically before you enable the Hyper-V role, your server OS is of the typical architecture, after enabling the role, Hyper-V installs itself on top of the hardware, and places your original OS into this special virtual machine, the root partition.
A comparison of certain key features between platforms:
Data Center Virtualization Solutions
vmware is a virtualization technique use to logically divide the hardware in order to use its resources more efficiently.
Hypervisor : Is a small firmware/operating system which can be installed on a bare metal. It does not need any host operating system. ex VmWare EXSix
Hyper-V is a hypervisor product of Microsoft.
similarly KVM is Linux based Hypervisor.
VMware and Hyper-V are virtualization platforms offered by VMware Inc. and Microsoft Corporation. It allows the IT infrastructure of any company to be virtualized.
VMware is native hyper visor of VMware and Hyper-V is native hyper visors of Microsoft used for virtualization of any environment.
Operating system virtualization is the use of software to allow a piece of hardware to run multiple operating system images at the same time. The technology got its start on mainframes decades ago, allowing administrators to avoid wasting expensive processing power.
Virtualization describes a technology in which an application, guest operating system or data storage is abstracted away from the true underlying hardware or software. A key use of virtualization technology is server virtualization, which uses a software layer called a hypervisor to emulate the underlying hardware. This often includes the CPU's memory, I/O and network traffic. The guest operating system, normally interacting with true hardware, is now doing so with a software emulation of that hardware, and often the guest operating system has no idea it's on virtualized hardware. While the performance of this virtual system is not equal to the performance of the operating system running on true hardware, the concept of virtualization works because most guest operating systems and applications don't need the full use of the underlying hardware. This allows for greater flexibility, control and isolation by removing the dependency on a given hardware platform. While initially meant for server virtualization, the concept of virtualization has spread to applications, networks, data and desktops.
VMware or Hyper V are the virtualization software which helps to utilized the hardware resource and create virtual machines to be run under these software.
Both are Hyper-visor from two different manufacturer to virtualization.
VMware offer products that virtualize computing, from the data center to the cloud to mobile devices. Hypervisor proivded by VMware is ESXi
Microsoft provides Hyper V as a Hypervisor to provide the above same solutions.
