{"id":7550,"date":"2021-08-30T13:58:51","date_gmt":"2021-08-30T11:58:51","guid":{"rendered":"https:\/\/tekmart.co.za\/t-blog\/?p=7550"},"modified":"2021-08-30T13:58:53","modified_gmt":"2021-08-30T11:58:53","slug":"type-2-hypervisor-hosted-hypervisor-an-expert-tech-explanation","status":"publish","type":"post","link":"https:\/\/tekmart.co.za\/t-blog\/type-2-hypervisor-hosted-hypervisor-an-expert-tech-explanation\/","title":{"rendered":"Type 2 hypervisor (hosted hypervisor)-an expert tech explanation"},"content":{"rendered":"Reading Time-approximately:<\/span> 3<\/span> minutes<\/span><\/span>\n

A Type 2 hypervisor, also called a hosted\u00a0hypervisor, is a virtual machine (VM) manager that is installed as a software application on an existing operating system (OS).<\/strong><\/h2>\n\n\n\n

ByBrien Posey<\/a>, Anil Desai<\/a> and Colin Steele<\/a><\/p>\n\n\n\n

There are\u00a0two types of hypervisors: <\/p>\n\n\n\n

Type 1 and Type 2. <\/strong><\/p>\n\n\n\n

Type 2 hypervisors support guest virtual machines by coordinating calls for central processing unit (CPU), memory, disk, network and other resources through the physical host’s OS. This makes it easy for an end user to run a VM on a personal computing (PC) device. Type 2 hypervisor vendors and products include VMware Fusion, Oracle Virtual Box, Oracle VM for x86, Solaris Zones, Parallels Desktop and VMware Workstation Pro.<\/p>\n\n\n\n

In contrast, a Type 1 hypervisor — also called a\u00a0bare-metal hypervisor\u00a0— is installed directly on physical host server hardware just like an OS. Type 1 hypervisors run on dedicated hardware. They require a management console and are used in data centers. Type 1 hypervisor vendors and products include Oracle VM Server for Sparc, ESXi, Hyper-V and Kernel-based VM (KVM).<\/p><\/blockquote>\n\n\n\n

Regardless of the implementation, VMs and their\u00a0guest OSes\u00a0are typically unaware of which type of hypervisor is implemented, as they interact only with the hypervisor itself.<\/p>\n\n\n\n

\"hypervisor
A Type 1 hypervisor runs on bare metal and a Type 2 hypervisor runs on top of an operating system.<\/strong><\/figcaption><\/figure>\n\n\n\n

Type 2 performance and management<\/strong><\/h3>\n\n\n\n

Type 2 hypervisors don’t typically perform as well as Type 1 hypervisors. A Type 1 hypervisor runs directly on a physical host machine, whereas a Type 2 hypervisor runs on top of the host’s OS. This means that unlike with Type 1 hypervisors, VMs don’t have direct access to the underlying hardware. As such, VMs must pass requests for hardware resources to the host OS, which then accesses the physical hardware on the VM’s behalf. In contrast, VMs running on Type 1 hypervisors have direct hardware access, enabling better performance.<\/p>\n\n\n\n

The VMs running on a Type 2 hypervisor are managed using a virtual machine monitor (VMM) — not to be confused with Microsoft’s Virtual Machine Manager. A VMM is an application that runs on top of the parent OS and acts as an interface to the virtual environment.\u00a0VMM<\/em>\u00a0is a generic term for a\u00a0virtualization management tool, and virtualization vendors typically give their management tools names. For example, Oracle calls its VMM\u00a0VirtualBox Manager<\/em>.<\/p>\n\n\n\n

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