Define Hypervisor in Cloud Computing and its Types: A hypervisor can be called a virtual machine monitor that lets the different virtual operating systems to get controlled at the same time. Also known as guest machines, this equipment shares the physical machine’s hardware that includes a processor, memory, and other similar resources. It results in boosting the utilization of underlying resources. The operating systems are isolated from the major host machine by a hypervisor.
Also See: Types of Cloud Computing
Define Hypervisor in Cloud Computing and Types
The main work performed by the hypervisor is to deal with the requirements of a guest operating system along with its easier management. As we all know, every virtual machine works independently without interfering with each other’s operations despite being operating on the same host. Let’s have a look at the advantages of hypervisor below:
- As we have already explained that virtual machines work on the same physical hardware, but still each one is separated from the other one. It means if an error occurs in a single machine, the second one won’t get affected due to that. All this becomes possible due to the presence of hypervisor in cloud computing.
- The second most amazing advantage of hypervisor is its mobility as these virtual machines aren’t dependent on the underlying hardware. There is no linkage between them and physical hardware, so the switching between virtualized servers becomes convenient and easier.
Major Types of the Hypervisor in Cloud Computing
There are mostly two versions of hypervisor that we have explained in detail below:
- Type 1 Hypervisor
These hypervisors work directly on the system hardware and available in many different versions. We have explained the major ones below:
Also See: What is Public Cloud?
- VMware ESX and ESXi
This hypervisor provides an advanced level of functioning and scalability but asks for licensing and higher costs. There are many bundles offered by this hypervisor type and result in making technology affordable.
- Microsoft Hyper-V
This type of hypervisor lacks in advanced features but still used by a great number of organizations. It is available in both paid as well as free versions for the consumers.
- Oracle VM
Based on the open-source Xen, the Oracle hypervisor is usually found in the bare-metal virtualization. The updates and support for this hypervisor costs charges to the users.
Also See: What is Private Cloud?
- Type 2 Hypervisor
The Type 2 hypervisor works on the host operating system where virtual services like memory management & I/O device support solutions to the consumers. We have mentioned some major type 2 hypervisors below:
- Microsoft Virtual PC
This latest version of Microsoft is based on the hypervisor technology and works on Windows 7 or above systems.
- Red Hat Enterprise Virtualization
It is one of the best versions of hypervisors that come with the features of both bare-metal virtualization and hosted model. It can transform a Linux kernel into a hypervisor.
- Oracle VM VirtualBox
This hypervisor is known for offering performance and features at an affordable price. It is very useful for companies who want to complete the virtualization process at an affordable price. It is equipped with a solid set of features that boost popularity.