Skip to main content

HOW VIRTUALIZATION WORKS

HOW VIRTUALIZATION WORKS

Virtualization

 

IT organizations are challenged by the limitations of today’s x86 servers, which are designed to run just one operating system and application at a time. As a result, even small data centers have to deploy many servers, each operating at just 5 to 15 percent of capacity—highly inefficient by any standard.

Virtualization uses software to simulate the existence of hardware and create a virtual computer system. Doing this allows businesses to run more than one virtual system – and multiple operating systems and applications -- on a single server. This can provide economies of scale and greater efficiency.

The Virtual Machine

A virtual computer system is known as a “virtual machine” (VM):  a tightly isolated software container with an operating system and application inside.  Each self-contained VM is completely independent. Putting multiple VMs on a single computer enables several operating systems and applications to run on just one physical server, or “host”.


A thin layer of software called a hypervisor decouples the virtual machines from the host and dynamically allocates computing resources to each virtual machine as needed.

Key Properties of Virtual Machines

VMs have the following characteristics, which offer several benefits.

Partitioning  
  • Run multiple operating systems on one physical machine   
  • Divide system resources between virtual machines
Isolation
  • Provide fault and security isolation at the hardware level   
  • Preserve performance with advanced resource controls
Encapsulation
  • Save the entire state of a virtual machine to files   
  • Move and copy virtual machines as easily as moving and copying files
Hardware Independence
  • Provision or migrate any virtual machine to any physical server

Server Consolidation

Using server virtualization, a company can maximize the use of its server resources and reduce the number of servers required. The result is server consolidation, which improves efficiency and cuts costs.
Learn More.

It’s Not Cloud Computing

Cloud computing is not the same thing as virtualization; rather, it’s something you can do using virtualization. Cloud computing describes the delivery of shared computing resources (software and/or data) on demand through the Internet. Whether or not you are in the cloud, you can start by virtualizing your servers and then move to cloud computing for even more agility and increased self-service.
Read More.

GETTING STARTED

Ready for the next steps? Learn about the various types of virtualization and find resources to help you begin your virtualization journey.

Server Virtualization
Most servers operate at less than 15 percent of capacity, leading to server sprawl and complexity. Server virtualization addresses these inefficiencies by allowing multiple operating systems to run on a single physical server as virtual machines, each with access to the underlying server's computing resources.
The next step is to aggregate a server cluster into a single consolidated resource – which improves overall efficiency and reduces cost. Server virtualization also enables faster workload deployment, increased application performance, and higher availability. Try the Virtualization 101 Hands-on Lab.

Learn more about vSphere and vSphere with Operations Management
Try for Free

Network Virtualization
Network virtualization is the complete reproduction of a physical network in software. Applications run on the virtual network exactly the same as if on a physical network. Network virtualization presents logical networking devices and services—logical ports, switches, routers, firewalls, load balancers, VPNs and more—to connected workloads. Virtual networks offer the same features and guarantees of a physical network with the operational benefits and hardware independence of virtualization.

Learn more about NSX
Try for Free

Desktop Virtualization
Deploying desktops as a managed service gives you the opportunity to respond quicker to changing needs and opportunities. You can reduce costs and increase service by quickly and easily delivering virtualized desktops and applications to branch offices, outsourced and offshore employees and mobile workers on iPad and Android tablets.

Comments

Post a Comment

Popular posts from this blog

Top five MLM companies in Pakistan

There are several multi levels marketing (MLM) or direct selling companies in Pakistan since 1999 but some of them are better than the others. We have some big names in the list of MLM companies in Pakistan. These companies are local and international companies and also have a great reputation in the world. Here we are giving some important information about these companies for the people who are searching for their career company in Pakistan. These are the top five MLM companies in Pakistan . These are decided by the top network marketers and by the masters of all kind of marketing in Pakistan. The ELI Enlightenment through learning and implementation (ELI) is one of the best MLM or direct selling company in Pakistan and a pure Pakistani company in the area. This company is working on the educational products. These products are computer courses, ielts, spoken English and some kind of other courses. All courses are in DVD’s. These courses are very expensive in
Post a Comment
Read more

web development

11 best web development blogs you should be reading right now This article is brought to you by   Usersnap   – a visual feedback & bug tracking tool, used by software companies like   Facebook ,   Google , and   Microsoft . Creating software isn’t that easy. There a ton of things to consider.  The more you actually create, the more you’ll learn . And since there are many developers out there who share their experience, it’s a hard game to follow all of them. Because of this, we collected the following blogs and present you a list of   11 web development blogs worth read. Be on top of the web development game In order to stay up-to-date on the   latest web development trends , we put our heads together and curated this list of what we believe are the   11 best web development blogs   you should be reading right now. Besides those web development blogs, we also curated a list of  24 great web design blogs ,   12 inspirational podcasts , and those   20+ web development
Post a Comment
Read more

The story behind the design of Dishonored: Death of the Outsider

 The story behind the design of Dishonored: Death of the Outsider Gamasutra staffers recently had the pleasure of talking to Harvey Smith of Arkane Studios while livestreaming  Dishonored: Death of the Outsider , the well-received  standalone followup to  Dishonored 2. Smith's comments about the design of various features in the new game, and in the franchise more generally, were fascinating. So fascinating that we decided to transcribe portions of the stream. Read on to learn about fascinating features that were cut for the game, as well as Arkane's approach to playtesting, whiteboarding, and designing powers. And for more developer insights, editor roundtables and gameplay commentary, be sure to  follow the Gamasutra Twitch channel. STREAM PARTICIPANTS: Harvey Smith , creative director of Arkane Studios Bryant Francis , co
Post a Comment
Read more