I have created a second domain controller and I have installed exchange to new DC . I have moved all theDomain name operation master to new domain . Also moved all the users mailboxes to the new domain controller successfully . when I shut down the first domain controller . The exchange 20003 echange MTA stack and Exchange inforation store on the second DC ( the new one ) stop working and can not be restarted ..
What am I missing here . need to get this solved befor my first domain controller gos bad