if you are P2Ving and retiring the old equipment, just treat it as you would any other physical machine conversion. however if you are virtualising host that are not going to be retired, IE increasing server count. then this is the proceedure I use
Disable remote logins to server
Create Dummy LMG and set an IP address Range of 1.1.1.1 and your own IP Address, this is used to stop unwanted connections happening.
Move machine to be mimgrated to Dummy LMG.
Enable Logons.
On Citrix server issue a Change farm and move the machine in to its own access based Test farm.
Reboot
Then Stop and disable all Citrix Services.
Hot Convert Machine
Logon to VM using Local Credential and Change Computer name and run NewSID.
Reboot
Rejoin VM to Domain.
Enable and Start Citrix Services. Verify all connectivity to Guest by creating a ICA connection to either the Desktop or a published application.
run ChFarm to return the host to the production farm and add Published apps to server and test.
Once satisfied return the Server to the correct LMG.
Tom Howarth
VMware Communities User Moderator
Tom Howarth VCP / VCAP / vExpert
VMware Communities User Moderator
Blog: http://www.planetvm.net
Contributing author on VMware vSphere and Virtual Infrastructure Security: Securing ESX and the Virtual Environment
Contributing author on VCP VMware Certified Professional on VSphere 4 Study Guide: Exam VCP-410
