Recently I performed move-requests to number of mailboxes on my system from DB1 to DB8.
All the move requests completed, some with warning but completed as well.
To verify that DB1 no longer store the users mailboxes, I dismounted it and indeed no users reported on issues.
Now I wanted to remove this DB entirely, but when I'm trying to remove it, I'm getting error that this database contains users mailboxes.
I checked it with:
#get-mailboxstatistics -database Db1
And to my surprise the result were that I have alot of mailboxes on this DB.
I doubled checked it with get-mailbox command, and I found out that all the mailboxes that I moved to DB5, coexist on both DB1 and DB5.
How can I solve it so only one copy will remain and DB1 will be empty?