A few usefull steps on using Citrix Auto Support, a very good idea from Citrix.
1) Get yourself a MyCitrix Account at http://www.citrix.com/mycitrix
2) Download Citrix Scout http://support.citrix.com/article/CTX130147
Citrix Scout currently supports XenApp 6.x and XenDesktop 5.x .
3) Upload the logfiles to Citrix Auto Support Website https://taas.citrix.com/AutoSupport/
The website will analyse your current environment and give recommendations.