Data Center
Virtualisation

           

Virtualisation

Contemporary demand for IT resources necessary for the effective functioning of a company is a challenge for companies, which can be addressed by virtualisation of environment.

Virtualisation means more effective use of the existing equipment resources of IT environment through any modification of characteristics of virtualised resources (consistent with equipment or software capabilities and project assumptions), adjusting them to user requirements.


Application model

Virtualisation of IT environment increases the use of servers by consolidating many services within one system platform. This allows to optimise the infrastructure costs by servicing many logical servers on a number of physical machines. Virtual environments provide greater security and high availability of IT systems.

  • Server Virtualisation.

Many services and applications can operate on many virtual operation systems launched on the same physical server or server cluster.

  • Storage Virtualisation.

This solution provides the possibility of seeing many arrays as one virtual device to which receiving devices are connected. This may help to achieve the effect of location independence for data. Workstation Virtualisation.

  • Application Virtualisation.

Applications are logically isolated from one another, which facilitates their simultaneous operation without worrying about the mutual software compliance. Applications may operate together, despite having access to the same operating system resources in different versions. This technology also supports testing applications.

  • Virtual Desktop Infrastructure – VDI.

Transferring user environment to the data processing center where workstation is launched in the form of a virtual machine, and access to it is provided through network.

  • Network Virtualization.

External network virtualisation is VLAN technology. It consists in logical division of network segments on physical network devices through frame marking. Internal visualisation consists in creating virtual switches and ports at the level of virtualiser. Such switches provide network communication to virtual machines and connect them with an external physical network.


Benefits:

Significance for business.

  • Business Continuity (High Availabilty)

Maintaining the principle of high availability of IT infrastructure translates into ensuring business continuity. Virtual environments based on a cluster of at least two physical servers maintain full availability even in the case of a failure in one of the system elements.

  • Reasonable human resource management.

Virtualisation allows easy management of a group of physical machines as if they were one device. Hence, IT team is capable of performing more tasks in other areas, significant from the perspective of the company.

  • IT financial optimisation.

Environment virtualisation allows to forecast expenditure for IT infrastructure much more accurately. In the case of maintaining redundancy of IT systems, with implementation of subsequent applications, it is not necessary to develop the environment with new physical servers.

  • Wirtualna infrastruktura stacji roboczych (ang. Virtual Desktop Infrastructure – VDI).

Przeniesienie środowiska użytkownika, do centrum przetwarzania danych, gdzie stacja robocza jest uruchomiona w postaci maszyny wirtualnej, a dostęp do niej zapewniony jest drogą sieciową.

  • Network Virtualization.

External network virtualisation is VLAN technology. It consists in logical division of network segments on physical network devices through frame marking. Internal visualisation consists in creating virtual switches and ports at the level of virtualiser. Such switches provide network communication to virtual machines and connect them with an external physical network.


Significance for IT.

  • Resources upon request – redundancy of IT infrastructure allows to make services available in a significantly shorter time within the framework of the existing infrastructure.
  • Predictability of infrastructure development.
  • Increased system stability and availability.
  • Easy restoration upon the failure.
  • Coherent IT infrastructure management.
  • IT infrastructure scalability.