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How to Remove a DAG Member in Exchange Server 2013 – A Worthy Solution

Sometimes while accessing Exchange Server 2013, end users may face a situation in which they have to remove one of the server from DAG in order to accomplish their tasks.

Therefore, in this blog we are going to discuss about a measure to remove a DAG member in Exchange Server 2013 from server environment.

TIP: If users simply try to uninstall the DAG member, then they will encounter an error during the procedure.

To delete a DAG member in Exchange Server 2013, there exists a three-step solution to perform the same.

Step 1: Removal of Database Copies

This procedure involves the elimination of database copies. For doing such, there exist following two measures:

  1. For removing the server from DAG, users will first have to keep their server as a standalone server hosting database and then remove different copies of database from other DAG members.
  2. One will have to remove complete database copies from the server (which is to be uninstalled), in order to successfully uninstall Exchange 2013

User can make use of any one of the two discussed scenarios to perform their elimination procedure. For instance, here we are going to follow second approach for removing DAG member with help of following steps:

  1. In the Exchange Admin Center, go to Server >> Databases for selecting a database, which has a database copy on server in order to perform removal of database copies

NOTE: All the database should not be in an active mode.

2. Now click on Database tab and select the database by clicking upon it

Click on Remove option to perform copies elimination


TIP: By using PowerShell cmdlets, you can remove multiple database copies at a time. However, this cmdlet will not work if database copies are in active mode.


Step 2: Server Removal From DAG

Second step involves removal of server from database availability groups. To do so, go through the following steps:

  1. In EAC, go to Servers >> Database Availablity Groups and select the DAG.


  2. After performing selection procedure, click on button to enable manage DAG membership option


  1. Now select the name of the server from drop-down menu and then click on Remove button


  1. For successful completion of removal procedure, click on Save button

TIP: Users can also make use of PowerShell cmdlets for such removal


Step 3: Removal of Exchange 2013

After removing the database copies and server from DAG, users can now finally remove Exchange 2013 without encountering any error. To do so, go to the Control Panel of your machine and uninstall the Microsoft Exchange Server 2013.


Conclusion

The blog illustrates that how to remove a DAG member in Exchange Server 2013 in a customized manner. The database should be inactive in order to perform removal operation. If end users perform the steps correctly, then they will be comfortably be able to perform their removal task.

Tej Pratap Shukla

Team @MSExchangeGuru

One Response to “How to Remove a DAG Member in Exchange Server 2013 – A Worthy Solution”

  1. Raman Says:

    Hi Tej,
    We are in a situation where we need to remove the Exchange 2013 server from DAG.
    Currently we have 2 passive servers running copy of other servers. Attached to SAN. These server have separate volumes for database copies. We have to move these server and attached to new storage.
    I could remove all the database copies.
    Remove servers from DAG.
    Then we will have stand alone servers.
    Shut down servers.
    Move servers attached to new storage allocate separate volumes.
    Add servers back to DAG and add database copies to it.
    Is there anything else you think I should be doing?
    Thanks,
    Raman

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