Most of the applications are challenged in terms of its function, agility, access and storage, which are been increased day by day. Through this, we make a virtual environment with high-performance storage facility and deliver it as software. This simplifies the total outrage of your business functionality and policy-based provisioning.
Application virtualization encapsulates application from the underlying operating system on which it is executed. A fully virtualized application is not installed in the traditional sense, although it is still executed as if it were. The application behaves at runtime like it is directly interfacing with the original operating system and all the resources managed by it, but can be isolated or sandboxed to varying degrees.
In this context, the term “virtualization” refers to the artifact being encapsulated (application), which is quite different from its meaning in hardware virtualization, where it refers to the artifact being abstracted (physical hardware. Modern operating systems such as Microsoft Windows and Linux can include limited application virtualization. For example, Windows 7 provides Windows XP Mode that enables older Windows XP application to run unmodified on Windows 7.
Full application virtualization requires a virtualization layer. Application virtualization layers replace part of the runtime environment normally provided by the operating system. The layer intercepts all disk operations of virtualized applications and transparently redirects them to a virtualized location, often a single file. The application remains unaware that it accesses a virtual resource instead of a physical one. Since the application is now working with one file instead of many files spread throughout the system, it becomes easy to run the application on a different computer and previously incompatible applications can be run side-by-side.
Technology categories that fall under application virtualization include:
Application streaming. Pieces of the application’s code, data, and settings are delivered when they’re first needed, instead of the entire application being delivered before startup. Running the packaged application may require the installation of a lightweight client application. Packages are usually delivered over a protocol such as HTTP, CIFS or RTSP.
Remote Desktop Services is a server-based computing/presentation virtualization component of particular OS that allows a user to access applications and data hosted on a remote computer over a network. Remote Desktop Services sessions run in a single shared-server operating system and are accessed using the RDP Remote Desktop Protocol.
Desktop virtualization is an umbrella term that describes software technologies that improve portability, manageability and compatibility of a computer’s desktop environment by separating part or all of the desktop environment and associated applications from the physical client device that is used to access it. A common implementation of this approach is to host multiple desktop operating system instances on a server hardware platform running a hypervisor. This is generally referred to as “Virtual Desktop Infrastructure” or “VDI”.
