We often think how to Move Exchange Server 2016 to Different Active Directory Site. This kind of situation arises when you plan to extend the Messaging Infrastructure DR for Site resilience. Replicating small databases are possible by installing Exchange Server in DR site, however it may not be viable option replicate databases over narrow bandwidth if we plan to host bigger databases. From Exchange Server 2010, we can easily shift/move exchange server one active directory site to different AD Site by following simple steps outlined below.

1.  Ensure that you have created and replicated required AD site and Subnets for DR/Secondary datacenter.

AD Site Details

2.  Ensure that the Exchange Server Infrastructure is healthy, and all the databases are replicated properly.

DB Copy Status

3.  It is also recommended to check the AD and Exchange replication help using,

Test-ReplicationHealth from DR Exchange Server & nltest from DR Domain Controller

4.  Verify the current AD site status of Exchange Server

Before Moving Site Info

Before Moving Exchange Server Site Info

5.  Now we are good to initiate the server site migration. Before we shut down and physically move the server to different site, it is recommended to set the Exchange Server to Maintenance Mode.

.\StartDagServerMaintenance.ps1 -serverName EX16-DR1 -MoveComment SiteChange

And check the cluster status

Get-ClusterNode | ft name, dynamicweight, nodeweight, state -AutoSize

Move it to Maitenance

 

6.  Shutdown and Shift the server to new site (DR/Secondary data center) and Bring up the server with new IP range configuration (subnet should be aligned to DR site).

7.  Restart the Server once again to register required DNS entries and other connectivity.

8.  Follow the below commands and ensure that the site movement of DAG member is success

Get-ClusterNode | ft name, dynamicweight, nodeweight, state –AutoSize

And if the status is Pause, then everything is fine. If the status is Down, that means some connectivity issues, please continue to troubleshoot.

Get-ExchangeServer | select Name,Site

Ensure that the site has changed, if you find the value that you expect then proceed to remove the server from maintenance mode.

.\StopDagServerMaintenance.ps1 -serverName EX16-DR1

The server status will change to Up from Paused post this step, and it will begin to replicate the delta and eventually the database copies will become healthy.

Final Stages

 

That’s it,  you have completed the AD site change for Exchange DAG Member/Node.

Share you experience in the form of comments, we will deal whichever possible.

-Praveen

Published in Solutions

Database Availability Group is the new cluster concept of Microsoft Exchange 2010. In other words DAG is the answer for Exchange 2010 database high availability. In this post I am trying to give you more insight about the Database Availability Group concept of Exchange 2010 and will try to clarify the queries as much as possible even though I know it is really not possible to cover every features of DAG in a post.

Before get into the feature of Database High Availability, let me tell you few more information about DAG. A Database Availability Group is a set of up to 16 exchange 2010 mailbox servers which gives automatic database-level recovery from a Database, Server or Network failures. DAGs are similar to Exchange 2007's SCR and CCR technologies, but mixed together, along with a few benefits.

  • Incremental Deployment:- You don't require to plan the numbers of server for DAG clustering, as an when you feel you can add more servers into DAG membership. This means if you want to deploy a DR server as a part of your production DAG it is all easy.
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