Error While Uninstalling Exchange 2010 – This Computer Is A Member Of A Cluster. It Must Be Removed From The DAG…

I was rather surprised to see the error message below while uninstalling Exchange 2010 in my test lab. The server in question was a member of a DAG, but it had been removed from the DAG gracefully and the DAG was deleted as well. There is no reference to the DAG while I checked the…

I was rather surprised to see the error message below while uninstalling Exchange 2010 in my test lab.

Uninstall Error DAG Member

The server in question was a member of a DAG, but it had been removed from the DAG gracefully and the DAG was deleted as well. There is no reference to the DAG while I checked the AD configuration using ADSIEdit. There was no cluster in the Failover Cluster Manager as well.

Cleaning up the node from the command line helped Exchange recognize that it is not part of a DAG. The command is cluster.exe node /force.

Clean cluster

Retrying the uninstall came back with all green tick boxes.

Can uninstall DAG member

6 Comments

  1. Keith Risinger says:

    Thank you so much!

    1. Rajith Jose Enchiparambil says:

      You are welcome Keith.

  2. Helped me as well thanks!

    1. Rajith Jose Enchiparambil says:

      Thanks Ozz

  3. Thanks, It works like cham.

    1. Rajith Jose Enchiparambil says:

      Glad it helped you Kafui.

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