What is Desktop Virtualization?
Desktop Virtualization is a technology that empowers end-users with a virtual computing environment across devices (desktops, laptops, tablets, mobile phone, etc.) and locations thereby delivering a consistent user experience. It ensures a secure, highly available, cost effective end-user desktop infrastructure wherein, end-user desktops are hosted on a centralized server, while ensuring maximum control and security over access and usage of desktops by end-users.
What are the types of virtualization?
Desktop Virtualization is not a “One Size Fits All” but requires a tailored approach to identify use case to be implemented. Organizations have the option to choose between in-house Virtual Desktop Infrastructure (VDI) or Desktop as a Service (DaaS). The different types of desktop virtualization are:
Session Based Virtualization :
It delivers individual session on a virtual machine or a server where each virtual machine is shared by multiple users.
Non-Persistent VDI :
It delivers a virtual machine that where sessions are not reserved or locked and can be accessed by multiple users. The desktop allows users to access their data on different PCs, as systems refresh themselves once the user has logged off.
Persistent VDI :
It delivers a virtual machine like non-persistent VDI except that user sessions are reserved or locked. This type of virtual machine is designed to suit the needs of individual users.
Hosted Shared Desktop :
It delivers shared desktops hosted on a server and connected to multiple thin clients. This type of virtualization enables multiple users to access the same desktop screen concurrently. This is also called RDSH (Remote Hosted Desktop).
Application Virtualization :
It is a virtualization technology where the required applications are hosted and published in a data center and are relayed as mere images to the end-user devices to capture actions (keystrokes and mouse actions) back to the application.
What are the benefits of desktop virtualization?
Desktop virtualization offers the following benefits to enterprises.
Reduced costs :
The virtualized desktops reduce the Capex involved in costly PC purchase and frequent IT refresh. The outsourced operations and pay-as-you-go model induce transparency on future requirements and helps manage Opex.
Anytime, anywhere, any device access to data and applications :
As applications and data are stored on central servers, this enables access independent of the time, place and device enabling end-users enjoy flexible yet secure application availability.
Simplified management :
Centralized storage of data and applications enable IT to manage desktops in an extremely efficient manner. Since user profiles are also stored centrally, rolling out OS, application and bug fixes are simplified.
Secure access :
End-users only have access to applications and data specific to their roles as a result of role-based user profile creation and policy adherence. This also enables enterprises in providing contract employees and partners with secured access to relevant data and applications.
Rapid disaster recovery and business continuity :
In the event of a disaster, virtual desktops can be provisioned from the centralized backup, thereby ensuring business continuity.