I'm about to deploy 2x additional Exchange Server 2013 SP1 + CU15
Mailbox server role to the existing
Exchange server in AD domains with the following role and version like:
ServerRole Edition AdminDisplayVersion
---------- ------- -------------------
PRODMBXCAS01-VM Mailbox, ClientAccess Standard Version 15.0 (Build 1130.7)
PRODMBXCAS02-VM Mailbox, ClientAccess Standard Version 15.0 (Build 847.32)
PRODMBX03-VM Mailbox Standard Version 15.0 (Build 847.32)
So my question is, do I need to worry for any outage or any caveats that is stopping me doing this deployment ?
Any outage required or interruptions to the mailflow ?
If I configure DAG is there any outage to the above email flow ?
Do I need to install the same level of Exchange Service pack or Cumulative update rather than installing the latest CU15 on the new server ?
Thanks in advance.