I have three exchange 2010 servers ex01, ex02,ex03. we recently upgraded all of the servers from sp1 to sp3, our primary exchange server was ex01, due to some issues we reformated our primary ex01, and did fresh installation of exchange 2010 SP3, we had around 40 mailbox databse copies.we successfull added around 20 mailboxdatabase to dag. but we are unable to add few mailbox database copy, when trying to add database copy its giving the error. any suggestion on this issue .?? thanking in advance.
