Virtualization

Virtualization Types

• Server Virtualization

  Server virtualization is a virtualization method whereby multiple servers under different operating systems can be run simultaneously on one physical server. This technology aids to achieve higher performance and flexibility while reducing the initial and operational costs for administration and hardware.

  Server Virtualization is well-established and strong development potential is forecast for this sector in the future.

  Key advantages of server virtualization:

  • More efficient and flexible utilization of resources;
    Server virtualization gives the  opportunity to push the capacity utilization rate of your servers up to 80 per cent. Firstly, this technology increases the performance of your servers and your IT infrastructure in general, and secondly, reduces hardware costs substantially.
  • Reduced energy consumption;
  • Increased security and flexibility at high level of availability and continuity;
    Server virtualization a higher and permanent level of availability and security. Key advantages of the virtualized server infrastructure are: easier disaster recovery, dramatically shorter restore times, automatic failover and better protection of data and systems
  • More efficient maintenance and administration;
    In a consolidated server landscape, fewer physical servers need to be monitored and the hardware configuration does not require constant updating. Furthermore, it is much easier to add extra virtual servers, as opposed to installing or configuring new physical devices.

• Desktop Virtualization

  Desktop virtualization is a technology that separates the user desktop from the physical system, where the operating system, the user settings, and the applications are installed.

  The desktop virtualization model allows the use of virtual machines to let multiple network subscribers maintain individualized desktops on a single, centrally located server. The client device may use an entirely different hardware architecture from that used by the projected desktop environment, and may also be based upon an entirely different operating system.

  Main advantages of desktop virtualization:

  • Easy deploying of new desktops;
  • Easy support and backup;
  • Centralized administration of desktops;
  • Fast disaster recovery;
  • Longer lifecycle for client desktop infrastructure and significantly reduced upgrade requirements;
    Secure remote access.

• Virtualization of applications

  Virtualization of applications is the transformation of desktop applications into virtual services, which are hosted and administered on a centralized server, but are started locally, when necessary.

  This significantly reduces complications and the use of highly qualified specialists for the installation, update, and administration of applications. Other essential advantage is the potentiality to avoid hardware and software conflicts, compatibility problems, and the possibility to start different version of a single application.

• Storage Virtualization

  Storage Virtualization is when several data storage servers are merged into one virtual server.

  By transforming physical storage areas into virtual storage units which can be allocated flexibly, a virtual storage solution means that storage space can be better optimized and adapted to the user’s requirements. Data management is optimized substantially while data backup and archiving processes are simplified crucially. Automatic failover ensures high resilience to failures, continuous data protection and access to data without interruptions. Simplified and rapid scalability of storage functions is a further benefit.

  Storage virtualization significantly reduces administration time and expenditures, while adding up a set of functions for greater stability and security.

• Network Virtualization

  Network Virtualization is when multiple logically divided networks are configured and started within or across existing physical network.

  This allows optimal and flexible usage of network resources, and also improves security and access control. .Centralized management allows to add fast and easy new resources and to configure specialized networks. Furthermore operational costs on network administration are considerably reduced.