So far in 2 part series of this article we worked on how one member of a Database availability group (DAG) cluster of Exchange 2010 server got broken and the cluster service got stopped and then in Part 2, how to add database copies back on a freshly added DAG member. Please refer to following links to article if you would like to understand that in detail.

Part 1 : Removing a mailbox server from DAG and Windows Cluster and re-adding it

Part 2: Reseeding a database copy after re-adding a new member to DAG.

Now after we had re added the member to windows cluster and DAG and we also added two of the database copy to the problem Mailbox server (which is now fixed) back, as we tried to add the third mailbox database copy we encountered the

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An automobile enthusiast at heart and computer geek by profession, started my Career with MS in 2005.Left Jobs and started Pledge Technologies (the parent company to Grishbi) back in 2009.We have been providing IT consulting to various Small and Medium businesses across US and UK since then.Our company specialises in Microsoft Server technologies like AD, Exchange, the rest and with numerous Office 365 migrations under our belt, we quite an expert with that too. Whatever we learn in our day to day life, we share it back on Grishbi as a Thank for all the love and support our customers have given us.