When planning for data collectors, consider:
If you need a dedicated data collector
If you do not need a dedicated data collector, which infrastructure services can share the same server
If you need a zone in each geographic region, which means that you need data collectors for
those regions as well
To maintain consistent information between zones, data collectors relay information to all other data collectors in a farm, creating network traffic.
In general, data collector memory consumption increases as farm size increases. However, it is not significant. For example, the Independent Management Architecture service running on the data collector typically uses 300 MB on a 1000 server farm.
Likewise, CPU usage is not significant. A data collector hosted on a dual-processor server can support over 1000 servers in its zone. In general, CPU usage increases as the number of servers in a zone increases, the number of zones increases, and the number of users launching applications increases.
On most networks, Citrix recommends reducing the number of data collectors and zones. For example, if you have a farm with 100 servers in one location, Citrix recommends having one zone with a dedicated data collector (although you can have backup data collectors).
Citrix recommends installing XenApp on the server you want to host the data collector functionality and, after installing other member servers, configuring a server as the backup data collector.
QUESTION 11
Scenario: An administrator is creating a new XenApp farm. The farm will use hosted applications and applications streamed using Microsoft App-V technology. Both Microsoft Windows and Apple OS X computers are in use in the environment. Management requires an automated process to deliver all necessary clients and plug-ins.
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