User Manual

Network Security Controls

Siemens

Application Note

Smart Infrastructure

3.2.7 Virtualization

Intended Use Case

Virtualization has become a widely preferred and suggested environment for IT

infrastructure by IT administrators:

 Server (Hardware) Virtualization is a proven software technology that

makes it possible to run multiple operating systems on the same server at

the same time, sharing the available hardware resources. It simulates the

available hardware and deludes every operating system running on top of

it to assume that it is the unique holder of the resource. The details of the

physical environment are kept transparent from the operating system.

 Add-On options for hardware redundancy allow running the same virtual

machine on multiple physical servers. If a server fails for any reason,

another physical server running the same virtual machine can take its

place. This minimizes any interruption in service.

 Network Virtualization create logical, virtual networks that are decoupled

from the underlying network hardware to ensure the network can better

integrate with and support increasingly virtual environments.

 Further virtualization types are desktop-, application- and service

virtualization

Virtualization of clients is not recommended. Depending on the virtualization

software, performance issues (such as, display of multiple video streams or

graphic display) may occur.

Desigo CC supports several server virtualization environments and their

redundancy options including transparent Network Virtualization. Terminal Server

applications, Desktop-, Service- and Application Virtualization are not supported.

The following key components can be virtualized:

 Desigo CC Server

 Video Management Service

 Microsoft SQL Server

 Microsoft IIS Server

 Desigo CC FEP