I'm thinking of disabling shadow redundancy on Exchange 2016. I'm curious has one here permanently disabled it and were there any problems as a result. I understand its HA for message delivery but its gets really annoying with messages in the message queue. They are not there for days or anything, but annoying seeing them. Curious about anyone who has disabled it, good or bad.
Also i will be migrating alot of mailboxes from Exchange 2010 to Exchange 2016, and I have enabled circular logging but wondering if shadow redundancy should be disabled for this move. I would like to leave shadow disabled though. Let me know your opinions.