Difference Between Cloud Computing & Virtualization

May 11, 2015 0

Not everyone is clear on what cloud computing is and how it operates – in fact, many people are as cloudy on the matter as the sky is on a rainy day. Though cloud computing and virtualization can work in conjunction with one another to maximize potency, it’s important to remember that these two IT services are not the same, as they are often mistakenly thought to be.

While both virtualization and cloud computing are responses to the ever increasing need to make the most of computing resources in a cost-effective manner, they operate very differently. Virtualization can be utilized to provide cloud computing, but cloud computing is not the same as virtualization. To start, cloud computing is considered to be a service, whereas virtualization ca n be defined as a physical infrastructure.

But what, exactly, is virtualization?

Virtualization is the creation of a virtual (rather than actual) version of something, such as an operating system, a server, a storage device or network resources. Experts unveil the top 25 best VMware command lines you might not know about or be using incorrectly in this essential resource. Additionally, learn the most useful command lines for your virtualization platform of choice, all in this comprehensive guide. You probably know a little about virtualization if you have ever divided your hard drive into different partitions.

A partition is the logical division of a hard disk drive to create, in effect, two separate hard drives. 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. In 2005, virtualization software was adopted faster than anyone imagined, including the experts.

And now what, exactly, is cloud computing?

Cloud computing is a general term for anything that involves delivering hosted services over the Internet. These services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). The name cloud was inspired by the symbol that’s often used to represent the Internet in flowcharts and diagrams. Cloud computing enables companies to consume compute resources as a utility — just like electricity — rather than having to build and maintain computing infrastructures in-house.Cloud computing promises several attractive benefits for businesses and end users.

Still not able to spot difference? No, let`s take it further!

Advantages of Cloud Computing 

Cost Efficiency: The cloud is available at lower initial cost than traditional technology. It can lower your company’s IT expenses. By using cloud computing technology, you can save on licensing fees and eliminates charges such as storage cost, software updates, etc.

Scalability: You can change your operation or storage needs allowing flexibility that suits your situation and scalability is a built-in feature of cloud deployments. The cloud instances are deployed automatically only when needed.

Backup and Recovery: It is much easier to perform backup and recovery of the data on a physical device. It provides flexible and reliable backup or recovery solutions.

Unlimited Storage: You can store the data on the cloud as it provides unlimited storage capacity. There is no need to worry about increasing your current storage space availability.

Easy Deployment: Cloud computing allows to you to deploy quickly which is the most important advantage of this technology. The entire system can be fully functional within few minutes

Advantages of Virtualization

Virtualization on Small Scale: You can purchase and maintain fewer servers with virtualization that makes better use of server’s available capacity than non virtualized servers. Each virtual machine runs its own operating system and business applications your company needs.

Increases Power Usage Effectiveness: Without virtualization, more hardware is required to do the same amount of work. As there is increase in power usage, it leads to physical infrastructure efficiency.

Less Redundancy: Virtualization contains high level of data centers, so ultimately a virtualized environment will have high fault tolerance.

High Amount of Work: Virtualization has more benefits in traditional technologies such as large relational databases, virtual local area networks and storage area networks.

Higher Availability: Virtualization decreases downtime during maintenance periods which means changes can be made to one server without effecting others and maintenance can be done without effecting business and causing disruptions.

Privacy: Security requirements for organizations can be provided by virtual machines by replicating the required level of resource or device privacy that comes with hard wired devices.

Conclusion

Cloud computing and virtualization are important concepts in today’s business environment. We have seen how virtualized environments are used in cloud based applications. Each have their own benefits and they are not competing approaches. Virtualization and cloud computing are both ways to do more with less by maximizing computing and infrastructure resources.

Categories: HPC

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