DevOps Virtualization Technologies

Virtualization, as the name suggests, produces a virtual replica of a previously physical object. Operating systems, servers, storage devices, and desktops are a data center's most frequent virtualized resources. Virtualization separates technologies like operating systems and applications from the underlying hardware or software. Virtual machines (VMs) are used in hardware virtualization to replace "actual" computers and "real" operating systems.

What are Virtual Machines?

Emulations of computer systems are known as virtual machines. A hypervisor duplicates the hardware to run several operating systems. Although virtual machines have been around for 50 years, they are currently growing in popularity due to the development of remote work and enduser computing. VMware vSphere with ESXi, Microsoft Windows Server 2016 with Hyper-V, Nutanix Acropolis with AHV, Citrix XenServer, and Oracle VM are a few popular virtualization stacks and hypervisors.

How Does Virtualization Work?

Server virtualization, which "duplicates" the underlying hardware via a hypervisor, is one of the primary reasons enterprises utilize virtualization technology. The hardware and the guest operating system (OS) typically cooperate in a non-virtualized environment. Businesses may get much of the same performance they expect without hardware because even when the OS is virtualized, it still behaves as if it were running on hardware. Virtualization is still practical and preferred since most guest operating systems don't require full access to the hardware, even though hardware and virtualized performance are only sometimes equal.

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The Benefits of Virtualization

Said virtualization tools streamline your company's data center. It gives modern data centers the flexibility they want while abstracting away the complexity involved in establishing and managing a virtualized system.

Data virtualization is data management that combines data from several applications and physical places without the requirement for replication or data transportation. It develops a solitary, virtual abstract layer that links to several databases to provide virtual data views.

Create numerous instances of a single server using server virtualization. These instances stand for a single virtual setting. An independent operating system that can function independently is present in each virtual environment. Reducing operating costs and eliminating the requirement for data sprawl enables one operating machine to perform the tasks of multiple machines.

Operating system virtualization: This technique is comparable to server virtualization. The host operating system is modified to run several isolated operating systems, including Linux and Windows, on a single computer, enabling numerous users to utilize it simultaneously for various purposes. Virtualization at the operating system level is another name for this.

Desktop virtualization: Desktop virtualization is a category of software that divides the primary desktop environment from other consuming devices. A single desktop environment is deployed simultaneously across numerous workstations, which conserves time and IT resources. It is also simpler to simultaneously deliver updates, repair systems, and integrate security protocols across several virtual desktops.

Network virtualization: Network virtualization unifies a network's software and hardware components into a single entity. It combines different resources into separate pieces and assigns them to the devices or servers that need them. It is frequently used with resource virtualization. This kind of virtualization enhances network speed, scalability, and dependability.

Why Should Organizations Opt for Virtualization?

Organizations must first focus on virtualization to achieve an IT environment more like the cloud. Use the server resources in your data center much more effectively by virtualizing them. Businesses used to have to allocate one application, like email, to a single server. Businesses in those situations would either over-accumulate multiple servers to handle their numerous applications or encounter another problem: resources needing to be utilized on a single server.

Virtualization Tools

  • VirtualBox
  • VMware


VirtualBox is open-source software for virtualizing the x86 computing architecture. It acts as a hypervisor, creating a VM (virtual machine) where the user can run another OS (operating system).

The operating system where VirtualBox runs is called the "host" OS. The operating system running in the VM is called the "guest" OS. VirtualBox supports Windows, Linux, or macOS as its host OS.

When configuring a virtual machine, the user can specify how many CPU cores and how much RAM and disk space should be devoted to the VM. When the VM is running, it can be "paused." System execution is frozen at that moment, and the user can resume using it later.

How Does VirtualBox Work?

Oracle VM For use on desktop or server hardware, VirtualBox is a potent multi-platform virtualization engine. VirtualBox is compatible with all popular operating systems, such as Windows, well-liked Linux kernels, macOS, and Oracle Solaris.

  • Operation
    VirtualBox functions by enhancing the capabilities of the current operating system, enabling it to run virtual machines without requiring any modifications to the hardware or software setup. The operating systems running inside VirtualBox are referred to as guests, while the operating system on which it is installed is referred to as the host. No restrictions would differentiate a guest operating system from a workstation for regular end users once it has been deployed and properly configured.
  • Mechanism
    Storage protection is divided into four layers, or "rings," in the Intel x86 architecture. The levels range from level 0 (with the most privileges) to level 3. (Lowest number of privileges).
    These "ring levels" are employed by operating systems to protect crucial system memory from programming errors that happen in user applications with fewer permissions. Applications are given access to natural processor resources like page tables, registers, and service interrupts with level 0 permission. In most operating systems, user programs run at level 3, while kernel services run at level 0.

Top 5 Uses of VirtualBox

  • Running any operating system
    While VirtualBox can only be installed on operating systems that are compatible with it, it can run any operating system as long as the host machine has the necessary resources. Despite having a different operating system on their host machine, this enables users to execute apps that are compatible with particular operating systems.
  • Installing software easily
    Virtual machines can be used by vendors to send users complete software configurations. For instance, setting up an email server on a specific device requires a lengthy and challenging task. With the aid of VirtualBox, software service providers can create intricate setups, also referred to as appliances, and then bundle them within virtual machines.
  • Ensuring robust redundancy and security
    An object called a virtual machine is a container that can be frozen, woken up, copied, and moved across hosts.
    Furthermore, as was already mentioned, users can save any virtual machine's state and then restore it using Virtual Box's snapshots feature. Users are now able to experiment as needed inside the virtual computing environment.
  • Developing cross-platform software
    Workflows for software testing and development on several platforms are made simpler by virtual machines. For instance, using VirtualBox, it is possible to create an application that has versions for both desktop and mobile platforms. As a result, there would be no need to move installer files between test devices.
  • Reducing infrastructure costs
    Low system loads require modern, high-end computers to employ only a portion of their processing capacity. Therefore, a substantial decrease in infrastructure expenses can be achieved with the aid of a large-scale VirtualBox deployment in a commercial setting with a pertinent use case.



Based in Palo Alto, California, VMware is a cloud computing and virtualization software provider. Since 1998, VMware has been a part of Dell Technologies. The bare-metal hypervisor ESX/ESXi in x86 architecture serves as the foundation for VMware's virtualization solutions. The hardware of a server can be used to run bare-metal embedded hypervisors without the requirement for a main operating system. When using VMware server virtualization, a hypervisor is placed on the actual server to enable the use of numerous virtual machines (VMs). As each VM can run its own operating system, many OSes can coexist on a single physical server. Resources like networking and RAM are shared by every VM running on the same physical server.

Products from VMware include storage, networking, and security management solutions, as well as virtualization and software-defined data centers. For setting up and controlling large-scale VM infrastructures, VMware vSphere is a server virtualization platform. With VMware vSphere, also known as a cloud operating system or a virtualized data center platform, IT organizations may allocate application workloads to the most affordable computing resource available.

VMware provides desktop and server applications. Linux, Windows, and Mac OS X are all supported by the desktop software from VMware. Workstation, Fusion, and Player are examples of desktop VMware products. Three server products from VMware are called VMware ESX Server, VMware ESXi Server, and VMware Server. Since 2004, VMware has supported Linux on VMware software, whether it is used locally or in the cloud. SUSE and VMware have worked together to offer cloud solutions for both private and public clouds in addition to a dependable data center virtualization solution. On the most recent vSphere release, SUSE Linux Enterprise Server is approved and supported.

Personal Desktop

The software companies first ever offering was VMware Workstation. Users can easily construct and run virtual machines (VMs) on a single Windows or Linux desktop or laptop. These virtual machines operate side by side with the actual machine. Every VM runs its own OS, such as Linux or Windows. As a result, users can run the natively installed OS alongside Windows on a Linux workstation or vice versa.

Benefits of VMware

Benefits of using VMware products include.

Data center solutions that are more effective and agile, using a zero-trust paradigm, more secure than container systems like Kubernetes, better at allocating resources and resources to apps, and easier to access data center administration.

Alternative virtual machines

Other hypervisors in the data center to VMware VSphere include.

  • Citrix XenServer
  • Microsoft Hyper-V
  • Citrix XenServer
  • Oracle VM Server

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