I have a very big citrix environment with more than 6000 client computers with ica web client verrsion 9.0 deployed. we are upgrading our farm from PS 4.0 to 5.0 and before the server upgrade we are upgrading the web interface server and the clients. my question is related to client upgrade. the options i could see is
1. configure the WI to automatically upgrade clients when clients connect
2. use the client upgrade configuration utility
3. user sccm to create a package and deploy
considering the large number of clients i am firstly worried about the bottleneck. secondly we want to do the installation in a phased manner in which locations are upgraded one after the other. most of the client have ica web client 9.0 but some have program neighborhood and web client. so we tried deploying the ica client using sccm ( Upgrading) and the PN starting giving problems. wither it was not available or if available could not open the interface. we want a seemless phased upgrade of the ica client. uninstalling and reinstalling is also something we have considered but management is reluctant about it.
so experts could suggest a seemless and phased ica client upgrade methodology please