12C Grid Control Manual Target Agent Delete

When deleting agent in 12C grid Console an error appering like that "Unknown error. java.sql.SQLException: ORA-20242: Target myhost.mydomain.com:3875:oracle_emd is monitoring other targets. It cannot be deleted

ORA-06512: at "SYSMAN.MGMT_ADMIN", line 484

ORA-06512: at "SYSMAN.MGMT_ADMIN", line 876

ORA-06512: at line 1"


You need clean manually target host from 12C Enterprise Manager.


cd $OMS_HOME/bin


[oracle@myhost bin]$ ./emcli login -username=sysman -password=<sysman password >


[oracle@myhost bin]$ ./emcli get_targets

[oracle@myhost bin]$ ./emcli sync

[oracle@myhost bin]$ ./emcli delete_target -name=<Target IP> -type="host"

Target "xx.xx.xx.xx:host" deleted successfully


[oracle@myhost bin]$ ./emcli delete_target -name=<Target IP>:3875 -type="oracle_emd"


Target "<Target IP>:3875:oracle_emd" deleted successfully


After deleting target host , you can configure this agent again ..