I am installing a Citrix/Xenapp farm for around 50 - 100 users and I would like the setup to be robust while haveing failover and redundancy. I am thinking 3 Servers, 2 running the sessions in failover and one AD and database server holding the profiles and database files.
I would appreciate any advice on this and what elements of Citrix/Xenapp I should install on each Server. Also, whether 3 servers is enough? It will basically be accessing a Client/Server type app and then normal Office documents and mail via Outlook/Exchnage. This will be accessed from around 5 sites via a VPN and possibly a Web Access Interface for external usage. I have also heard that Xenapp4 (x64) and Win 2008 (x64) will give the best performance.
Thank in Advance !