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Hypervisor
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- 2. Introduction • Virtualization meanscreating more logical IT resources, called virtual systems, within one physical system. • Hypervisor is what controls and allocates what portion of hardware resources each operating system should get. • Manages what every one of them to get what they need and not to disrupt each other.
- 3. Types Of Hypervisor •Type 1 (native) Hypervisor: Hypervisors run directly on the system hardware – A “bare metal” embedded hypervisor.
- 4. Type 1 Hypervisor •VMware ESX and ESXi : Offer advanced features and scalability, but require licensing, so the costs are higher. • Microsoft Hyper-V : Doesn’t offer many of the advanced features. available in both a free edition, 4 commercial editions • Citrix XenServer : Just as Red Hat Enterprise Virtualization uses KVM (Kernel Based VM), Citrix uses Xen in the commercial XenServer. • Oracle VM : The Oracle hypervisor is based on the open source Xen. However, if you need hypervisor support and product updates, it will cost you.
- 5. Types Of Hypervisor •Type 2 (hosted) Hypervisor: Hypervisors run on a host operating system that provides virtualization services, such as I/O device support and memory management.
- 6. Type 2 Hypervisor •VMware Workstation/Fusion/Player : It is free & some advanced features, such as record-and-replay and VM snapshot support. • Microsoft Virtual PC : Runs only on Windows 7 and supports only Windows operating systems running on it. • Oracle VM VirtualBox : Despite being a free, hosted product with a very small footprint, VirtualBox shares many features with VMware vSphere and Microsoft Hyper-V. • Red Hat Enterprise Virtualization : Has qualities of both a hosted and a bare-metal virtualization hypervisor. It can turn the Linux kernel itself into a hypervisor so the VMs have direct access to the physical hardware.
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