I have about 200 user on Exchange 2010. I have one CAS box. I want to install new CAS server and setup CAS array. I understand I need to install NLB on both of my CAS servers. My question are:
1- Will I need to reboot my current CAS server?
2- is there a down time expected?
3- How should I plan this so it has minimal impact to users?
4- How should I roll out the new CAS array after I built it to all Outlook users?