I am currently in the process of migrating our exchagne envirnment form 2003 to 2010.
I currently have 2 exchange 2010 servers each running CAS/HUB/MB. The 2003 envirnment is 2 mailbox servers in windows cluster. and a front end server.
We just got in 2 new servers that i've been asked to use move the cas/hub off the mb servers so those are only for mb role.
The servers will be in a windows NLB for a cas array.
My question is multi part and is this.
Q1.Can I create the CAS/HUB array with NLB configured and stop at that point without running the cmd on the mailbox servers to point to the new array name and not have the Outlook clients see any interruption or issues with sending and receiving emails?
Q2. What is the best/easiest way to notify the Outlook clients of the new array name to use when the cmd is executed on the mailbox servers when I’m ready to start using it? I've read that I will need to manually change all the Outlook clients to point to the array name instead of the CAS server for authentication to their mailbox.
Q3. If autodiscover is working properly will this take care fo the mailboxes already migrated to ex2k10 once i run the above commands ? and the Cas array i use the internal domain name ? for example. casarray.internaldomain.local
Q4. since we are in split dns intenal and external domain. should i specify all internal urls to point the external name for example mymail.externaldomain.com or do I use the CAS array name ?
Q5. Should the cas array name show the internal domain or external domain name ?
Q6. Also can i just do a set-routinggroupconnector and change the IPS to the new HUB servers and continue mail routing between 2003 and 2010 ?
I know this is allot and any help would be greatly appreciated.
Q1.Can I create the CAS/HUB array with NLB configured and stop at that point without running the cmd on the mailbox servers to point to the new array name and not have the Outlook clients see any interruption
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