December 2004
Beginner
672 pages
20h 38m
English
Content preview from Learning Windows Server 2003
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Requirements for Terminal Services
Because most of the processing power that was traditionally on the desktop has moved to the server in a Terminal Services scenario, it follows that the machine hosting Terminal Services for your users should be significantly beefier than you might otherwise be used to. Perhaps the two most interesting points on the radar as far as hardware requirements are CPU and RAM, followed by the network interface and links.
CPU Requirements
CPU requirements can be difficult to measure because individual users require different slices of processor time at different intervals. Two main factors determine CPU usage: intensity of the applications that users are running, and the number of simultaneous users. Table 10-1 gives a rough estimate for CPU requirements based on number of users and application intensity.
Table 10-1. Rough estimates of CPU requirements for Terminal Services
|
Simultaneous users |
Intensity of application(s) |
Recommended processor |
|---|---|---|
|
20-25 |
Low |
Pentium III 750MHz+ |
|
High |
Dual Pentium III 750MHz+ or Pentium IV Xeon any speed | |
|
35-40 |
Low |
Pentium III or IV, 1GHz+ |
|
High |
Dual Pentium IV Xeon 2GHz+ | |
|
50-55 |
Low |
Dual Pentium IV Xeon 2GHz+ |
|
High |
Not recommended |
Amount of RAM
Here are some hard and fast facts about RAM usage with Terminal Services that you might find helpful:
Each user, upon just logging in, occupies roughly 20MB of the Terminal Services host machine’s RAM.
A typical load of two to three Office applications per user will add approximately ...
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