If you have still the same issue, here how it can be done manually, which did not work for me; perhaps to much data as query complaining 'to many temporary tables' when i run the below DELETE statement:
-> http://www.symantec.com/business/support/index?page=content&id=TECH161545
-> http://www.symantec.com/business/support/index?page=content&id=TECH144682
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Stop all OpsCenter services except for the database service
Backup the current OpsCenter database:
C:\Program Files\Symantec\OpsCenter\server\bin\dbbackup.bat \
Connect to the OpsCenter database with dbisqlc
List existing master servers with the following command:
select * from dba.domain_masterserver
View the results and note the ID of the master server to be deleted
Delete the master server with the following command:
delete from dba.domain_masterserver where id=nnnnn (where nnnnn is the ID of the master server to delete as noted in the previous select statement)
When the delete command finishes, commit the changes
commit
Exit disiqlc
Start the OpsCenter server and webserver services
Login to the OpsCenter GUI and confirm that the master is now deleted.
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