How does virtualisation work ?

Application virtualisation

The technology of application virtualisation (formerly referred to as application publication or server-based computing) makes it possible to provide applications as a service, cutting free from the technical constraints of deployment.

All user data and applications are hosted at a secure data centre for improved data availability and security.

In other words, users can access their applications from anywhere, at any time using a web browser and benefit from improved quality of service.

The main benefits of application virtualisation are:

• Reduces the number of components to be managed at the desktop, and thus reduces its TCO
• Provides the application service instantly
• Improves the availability of the application service
• Improves data security

Underlying principle

The principle of Server-Based Computing (SBC) is to centralise the client application components of the information system in order to optimise their management and reduce their reliance upon their usage environment.

In the Windows world, this consists of removing client applications from the desktop and installing them instead on a cluster of Windows servers which form a server farm. The application is then executed from one of the servers constituting the farm, on request by the user, and the application's display output is transmitted via a highly efficient, optimised network protocol. Users thus have access to their applications, regardless of the method of access, desktop used or type of network used, with optimum security levels.

The system includes an administration component, dedicated to server management, a client component, i.e. the user's access device, and a communication protocol between the user and the server.

Desktop virtualisation

Desktop virtualisation makes it possible to virtualise the operating system of the desktop in its entirety, following the same principle as server virtualisation.
The various virtual or physical desktops are hosted at a secure data centre for improved data availability and security.

Users use their desktops for remote access and display, as if they were actually physically present.

The main benefits offered by desktop virtualisation are:

• Reduces the management costs for the desktop
• Provides the application service instantly
• Desktop version can be changed instantly
• Improves data security

Underlying principle

The principle of VDI architecture is to virtualise the desktop in order to break the link between hardware and software resources. This allows the desktop to be used more flexibly in a centralised (virtual or physical) environment.
With this approach, the desktop becomes accessible to everyone, regardless of access method, in order to facilitate mobile and remote access and to optimise the desktop architecture.

The system still includes an administration component, dedicated to server management, a client component, i.e. the user's access device, and a communication protocol between the user and the server.

A unique approach: combining application virtualisation and desktop virtualisation within one single product

With its AppliDis Fusion virtualisation solution, Systancia is bringing a new approach to the market: AppliDis Fusion can manage application virtualisation and desktop virtualisation from one single desktop.

By combining these two technologies, AppliDis Fusion is capable of virtualising all desktop applications. Application transparency is ensured regardless of which access strategy is used, providing support for all types of applications, regardless of their requirements for dongles, graphics cards, desktop OS, etc.

Our position enables us to meet all our clients' needs: today, every situation is unique, and only by combining the two approaches into one single product can administrators have the ability to meet every user need while at the same time simplifying administration.

Totally open to market standards

Systancia's AppliDis Fusion solution is fully compatible with market standards. From the point of view of desktop virtualisation, AppliDis Fusion is also capable of connecting to the main existing hypervisors (ESXi, ESX, hyper-v, Virtualcenter, etc.) and providing complete administration for virtual and physical machines.

Access to Windows desktops is delivered irrespective of the access strategy used, reducing implementation costs and overall administration load.