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?
There have become quite a lot of types of virtualization over time, and most likely, this is due to the perfection and indispensability of this technology.
- 1. Application virtualization, when they work independently of each other - applications do not require installation, they just need to be run on the selected machine.
- 2. Server virtualization, which is used most often: to run several virtual machines on one physical machine, each of which simulates the operation of a separate server.
- 3. Virtualization of the corporate network - in such a network, it is possible to perform the same actions and tasks as on the physical.
- 4. Storage virtualization, when the accumulated data is managed by a virtual system.
- 5. Virtualization of presentations - the essence is as follows: the presentation is on one host, and its image on another.
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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