Aaron Hauber / /

Unable To Delete Mirror Database Lync/Skype for Business

While attempting to remove Persistent Chat from one of my client’s environments I came across an issue removing the persistent chat database MGC.  I could successfully remove the service from the persistent chat servers but when I got to the second step of the to do list I received the below error.


It appears this command only works if the server is present in topology.  I however did not want to attempt to add the server back to topology as this seemed counterproductive.   So, I attempted to run the uninstall-csdatabase command hoping I could just delete the databases from each server.  This did not work either.  I received an error stating this command could not be run against a mirrored database.  At this point I was ready to play hard ball.  I figured if I can break the mirror on the MGC database I then would be able to run the uninstall-csdatabase command.  To do this I logged onto the primary SQL server backend that housed the MGC database and ran the following query from SQL Management Studio ALTER DATABASE mgc SET PARTNER OFF.  I was then able to run the 3rd step of the to do list successfully (uninstall-csdatabase).  I then noticed the mgc database was still present on the 2nd previously mirrored SQL server.  From that server’s SQL Management Suit I ran this query RESTORE DATABASE mgc WITH RECOVERY.  After running that command, I was then able to run the uninstall-csdatabase command against the 2nd SQL server and remove the mgc database.

Work with our team of Cloud Computing Consultants who have done this so many times they know all of the “minefields” to prevent missteps.

Subscribe to Email Updates

Refine by

To expand the list, please click on the double arrows.


Search by Category or Author: