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What is virtualization technology?

Here you will find out:

  • what is virtualization
  • how does it work
  • when DiskInternals can help you

Are you ready? Let's read!

What is virtualization?

Virtualization is a large-scale mechanism for creating a virtual representation of resources without being tied to hardware.

Thus, you can primarily visualize servers, as well as applications and desktops, storage, network resources, etc.

With virtualization, you can run software that is not compatible with each other or different versions of the same software.

In addition, if you need to migrate virtual machines from one server to another, there will be no hitch, and this will not affect the smooth operation of the machine.

How does it work?

Virtualization is based on a special program - a hypervisor, which is engaged in resource allocation on the host OS. Upon request, the hypervisor gives the guest machines the necessary RAM, processor power, storage resources from a common resource pool, and more.

All the contents of the virtual machine are in one large file, which can be subjected to any action - moving, opening, and using on multiple computers, with all this happening in its natural form.

Thus, this interaction allows you to run multiple systems based on a single computer, and the physical resources of this machine are allocated to each virtual system independently. This is a wonderful symbiosis that large corporations and more like to use.

What virtualization's benefits are?

For IT corporations, virtualization technology is a great way to save on maintaining and upgrading their infrastructure. It should also be noted as a simple and understandable migration that occurs without downtime. For example, VMware has its own development for Vmotion migration.

Another great advantage is resistance to interruptions in work: if one physical device breaks down, regardless of the reason, virtual systems will immediately switch to another working device.

Virtualization also increases VM performance: virtual machines, if necessary, are moved from loaded servers to less loaded ones.

What types of virtualization are?

Data virtualization

Data from several sources can be combined into a single source. Data virtualization enables businesses to approach data as a dynamic resource, allowing them to combine data from many sources, readily adapt new data sources, and change data to meet user requirements. Data virtualization solutions sit in front of various data sources and allow them to be handled as a single source, giving the correct data to the right application or user at the right time.

Desktop virtualization

Desktop virtualization, not to be confused with operating system virtualization, which allows you to install multiple operating systems on a single machine, allows a central administrator (or automated administration tool) to deploy simulated desktop environments to hundreds of physical machines at the same time. Unlike traditional desktop environments, which need each computer to be physically installed, configured, and updated, desktop virtualization enables administrators to do bulk setups, updates, and security checks across all virtual desktops.

Server virtualization

Servers are computers that are meant to handle a large number of particular activities efficiently so that other computers, such as laptops and desktops, may focus on other tasks. Virtualizing a server allows it to do more of those specialized activities while also allowing the components to be utilized for different purposes.

Operating system virtualization

The kernel—the central task managers of operating systems—is where operating system virtualization takes place. It's a convenient method to run Linux and Windows together. Enterprises may also deploy virtual operating systems to PCs, which:

  • Because the computers don't require as great out-of-the-box capabilities, bulk hardware prices are reduced.
  • Because all virtual instances can be monitored and segregated, it improves security.
  • Time spent on IT services such as software upgrades is limited.

Network functions virtualization

Network functions virtualization (NFV) divides a network's main functions (such as directory services, file sharing, and IP setup) so that they may be dispersed across several settings. Specific functions can be packed together into a new network and allocated to an environment once software functions are independent of the physical computers they originally resided on. Virtualizing networks decreases the amount of physical components needed to construct several, independent networks, such as switches, routers, servers, cables, and hubs, and it's very popular in the telecommunications business.

How to access files on VMware virtual machine if VMDK is deleted?

There is nothing to worry about - DiskInternals VMFS Recovery will return all the data in VMFS format. The application deeply scans VMFS partitions created in VMware vSphere 3.5-6.5 and ESX / ESXi VMware® ESX Server™ and then presents the received files for viewing. Also, the program, if necessary, returns VMDK files stored on disks formatted using VMware ESX/ESXi Server.

DiskInternals VMFS Recovery allows you to mount virtual disks as local disks, so they become available in Windows Explorer, etc. Therefore, you don’t have to worry, this application has been doing its job for more than 15 years and has earned great trust among its customers.

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