[debian-edu-commits] [Debian Wiki] Update of "DebianEdu/Documentation/en/ITIL/InfrastructureSetup" by PetterReinholdtsen

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The "DebianEdu/Documentation/en/ITIL/InfrastructureSetup" page has been changed by PetterReinholdtsen:
https://wiki.debian.org/DebianEdu/Documentation/en/ITIL/InfrastructureSetup?action=diff&rev1=11&rev2=12

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Generated from git.

  
  == Network architecture ==
  
- User case: Are going to set up a computer network that scales so one can operate the system locally or connect to a centralized operational solution
+ User case: Shall set up a computer network that scales so that one can either operate the system locally or connect to a centralized operational solution
  
  === Solution ===
  
@@ -136, +136 @@

  === Table of client types ===
  
  ||'''''Main solution'''''||'''''Support for multimedia'''''||'''''Characteristics'''''||
- ||Fat clients (Windows, Linux or Mac)||Good support for sound, graphics and video with powerful enough processor and memory on the client machine.||All applications installed on the client machine. The user programs run on the client machine. Client machine may be stationary or portable. Running multiple services in networks such as email, file storage, case-filing system etc.'''Advantage:''' Requires few server machines. Good support for multimedia'''Disadvantage:''' Need to install and maintain all the software on each client machine||
+ ||Fat clients (Windows, Linux or Mac)||Good support for sound, graphics and video with powerful enough processor and memory on the client machine.||All user applications installed on the client machine. The user programs run on the client machine. The client machine may be stationary or portable. Running multiple services in networks such as email, file storage, case-filing system etc.'''Advantage:''' Requires few server machines. Good support for multimedia'''Disadvantage:''' Need to install and maintain all the software on each client machine||
- ||Diskless workstation (Linux. Earlier this was the solution from Novell with Windows 3.X)||Good support for sound, graphics and video given a powerful enough processor and memory on the client machine.||All user applications are installed on the server machine. User programs run on the client machine. Client computer is usually stationary. Running multiple services in networks such as email, file storage, case-filing system etc.'''Advantages:'''Advantages. Same functionality as thick clients. Need few servers. The client computers do not have software installed.||
+ ||Diskless workstation (Linux. Earlier this was the solution from Novell with Windows 3.X)||Good support for sound, graphics and video given a powerful enough processor and memory on the client machine.||All user applications are installed on the server machine. User programs run on the client machine. Client computer is usually stationary. Running multiple services on the network such as email, file storage, case-filing system etc.'''Advantages:'''Advantages. Same functionality as thick clients. Need few servers. The client computers do not have software installed.||
- ||Thin client (X Window System)||Decent audio, graphics and video support given powerful enough processor memory on the server machine. Need high capacity client network.||All user programs and services are installed on the server machine. The user programs running on servers. The client computer is usually stationary. Running multiple services in networks such as email, file storage, case-filing system etc.'''Advantage:''' Gives new life to reused computers. Client is not installed software.'''Disadvantage:''' Requires more servers than thick and diskless clients.||
+ ||Thin client (X Window System)||Decent audio, graphics and video support given a powerful enough processor memory on the server machine. Needs high capacity client network.||All user programs and services are installed on the server machine. The user programs running on servers. The client computer is usually stationary. Running multiple services in networks such as email, file storage, case-filing system etc.'''Advantage:''' Gives new life to reused computers. Client is not installed software.'''Disadvantage:''' Requires more servers than thick and diskless clients.||
- ||Graphical terminals (FreeNX, Citrix, RDP)||Decent graphics support given powerful enough processor memory on the server machine, and high capacity network. Weak or little support for interactive graphics at medium capacity in the network.||All user programs and services are installed on the server machine. Full operating system with window system is usually installed on the client machine. The user programs running on servers. The client computer is usually stationary. Running multiple services in networks such as email, file storage, case-filing system etc.'''Advantage:''' Gives new life to reused computers.'''Disadvantage:''' Must install and maintain operating system on each client machine. Requires more servers than real thin clients. Requires significantly more servers than thick or lowfat clients. Gives poor performance or no support for multimedia. The terminal disconnects with overloads in the network. This may happen several times an hour.||
+ ||Graphical terminals (FreeNX, Citrix, RDP)||Decent graphics support given powerful enough processor memory on the server machine, and high capacity network. Weak or little support for interactive graphics at medium capacity network.||All user programs and services are installed on the server machine. Full operating system with window system is usually installed on the client machine. The user programs running on servers. The client computer is usually stationary. Running multiple services in networks such as email, file storage, case-filing system etc.'''Advantage:''' Gives new life to reused computers.'''Disadvantage:''' Must install and maintain operating system on each client machine. Requires more servers than real thin clients. Requires significantly more servers than thick or lowfat clients. Gives poor performance or no support for multimedia. The terminal disconnects with overloads in the network. This may happen several times an hour.||
- ||Laptops||Good support for sound, graphics and video with powerful enough processor and memory on the client machine.||'''Advantage:''' Can bring the PC along'''Disadvantage:''' Must install and maintain operating system on each client machine. Must set up and maintain services that make it easy and connect and disconnect machines in the network. There is considerable breakage with portable equipment, and lifetime are averaging 3 years or 2-5 years less than desktops. Operation of the portable is expensive.||
+ ||Laptops||Good support for sound, graphics and video with powerful enough processor and memory on the client machine.||'''Advantage:''' Can bring on the PC wherever it's suitable'''Disadvantage:''' Must install and maintain operating system on each client machine. Must set up and maintain services that make it easy and connect and disconnect machines in the network. There is considerable breakage with portable equipment, and lifetime are averaging 3 years or 2-5 years less than desktops. Operation of the portable is expensive.||
  
  === Solution ===