What is Hypervisor in Cloud Computing
Updated on 30th Dec, 22 67 Views

The sapling that formed into a tree is cloud computing. The wide spread of Cloud-Based Computing has taken over the technological world spreading its branches, and now every business, company, and organization is plucking the fruit of cloud computing services.

And indeed this fruit is delicious!

The subtopics that we will be covering are to find how the sore lemon of a crude idea of hypervisor turned into the lemonade of today’s world.

Topics to be covered:

For a prior understanding of the topic, kindly go through the video

What is Cloud Computing?

Ever questioned anything to your friends and they told you to google it rather than to disturb them? Well, Cloud Computing is the Google for IT services where you will find each resource that is ever required for development over the internet.

Suppose you are an owner of a software system company and you inspire to grow your business. A restricted quantity of resources, infrastructure, dynamic demands, and expenses are the foremost that you should worry about as a company holder. What will you do?

Well, being an insightful person, I know you will go for cloud computing, after all, you are an owner of an asset!

Instead of spending your whole amount of sum in buying, owning, maintaining, and giving structure to your data, you’ll simply use cloud computing. By that, you’ll be authorized to access technical tools, such as databases, storage, networking, and servers. Hence, a pay-as-you-go basis helps you in growing your business at a minimum cost.

Now with the clarity of cloud-based computing, let’s jump into the Jack of the blog – Hypervisor.

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What is Hypervisor in Cloud Computing?

A Cloud Hypervisor is software that creates and runs virtual machines. Hypervisors are a crucial part of the technology that makes Cloud Computing Virtualization possible.

Let’s again begin with the supposing part and make you the developer of an application that serves people online in any manner. We hope that you are not thinking of hosting your application on your personal laptop, are you? Well if yes, then you can’t be more wrong.

Let me tell you that personal machines do not have enough configurations that it can manipulate multiple requests of the hosted application.

Here the servers enter the blog, which consists of multiple hardware. If you try to host your application only on one server it will crash again. With the very same similar reason that one hardware can’t handle thousands of requests hence, increasing traffic.

In order to overcome server issues deploying your application on multiple servers with different hardware leads to handling traffic of requests very easily.

These all machines(hardware) we talked about are converted into Virtual Machines. How come? Let’s see.

When one goes for hosting the app, it can’t directly be done on a server, for that you need an OS. Let’s say your app used the Linux operating system. This is how hardware machines are converted into virtual machines, putting applications with one particular OS.

It is very important to keep a compatible OS otherwise the application will definitely crash.

A hypervisor allows the host computer to support multiple Virtual Machines

simultaneously by mutually sharing the hardware resources, as software always requires physical hardware to run.

That was a long go! Well, understanding hypervisor is not a task of 2-3 lines, it required an elaborate explanation.

Now, less with metaphors and more with a studious tone, let’s cover the types of Hypervisors in Cloud Computing.

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Types of Hypervisor

Types of Hypervisor

The hypervisor has the capacity to run many operating systems single-handedly. The types of hypervisors are made due to the very fact that it has different ways to handle OS. The classifications are;

Type 1 Hypervisor:

It is a hardware-based hypervisor with a single physical server at the base of the stack that doesn’t need its own operating system.

The other layer is of hypervisor which is directly installed on the server, above this, there is another layer of an OS.

The Type 1 Hypervisor’s role is to directly run on the actual server with direct access to hardware resources, obviating the need for the OS to be aware of the hypervisor layer’s presence.

Examples of Type 1 Hypervisor are ESXI from Vmware, Hyper V from Microsoft, and Oracle VM fRom Oracle.

Type 2 Hypervisor:

The software-based hypervisor also has one physical server at the bottom which has a different OS known as the host operating system and runs on the underlying host system.

Another name of this type is Hosted Hypervisor. Such hypervisors operate as applications within a Host system rather than running directly over the underlying hardware.

The software is essentially put on an operating system. The hypervisor requests hardware calls from the operating system.

Examples of Type 2 Hypervisor are Virtual Box from Oracle, Vmware Workstation from Vmware, and Virtual PC from Microsoft.

Have the question of when to use which type, struck your mind yet? Let me tell you that generally Type 1 Hypervisor is used because of the reason that it is efficient, and provides high performance, load balancing, and high availability.

However, a Type 2 Hypervisor is a multipurpose box, which is quite reliable as sharing physical resources is usually done with a mutual understanding of the OS. Additionally, type 2 is utilized for app development and support.

Let’s now find out how it is possible for hypervisors to sustain the demanding market.

Benefits of Hypervisor

No technology can ever be too demanding if it doesn’t benefit humanity in some way. Let’s investigate how Hypervisor supports this claim.

Data replication: The replication of the virtual machine data is very easy if the OS or the virtual machines are running on any hypervisor.

Desktop Virtualization: With help of a hypervisor, we can easily achieve desktop virtualization.

Management: If we deploy VM on any hypervisor, it gets a lot easier to manage it. Moreover, installation and deployment get faster.

Does the technology only have benefits? This is not the case in the mundane world. Hypervisor surprisingly is open to attacks, despite the fact it is vigorous and stable. As a result, it qualifies as a technology with flaws.

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Conclusion

Here we come to the end of the blog, it has given us the idea that the base of the virtualization platform is a hypervisor, this is the major role of a hypervisor in cloud computing. With the context of the blog, we tried to learn almost everything that revolves around the definition of the hypervisor. It is not a tree with few branches, rather it is a whole forest and we have just covered the base: its trunk.

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