The XCOUPLE DELETE command removes an active coupled session from a master session independent of the status of the coupled session. You must issue the XCOUPLE DELETE command from the logical partition in which the session is currently active. If an XQUERY MASTER command still indicates that the session is coupled to the master session after you have issued the XCOUPLE DELETE command, issue the XCOUPLE PURGE command.
The XCOUPLE PURGE command removes an inactive coupled session from a master session. You can issue the XCOUPLE PURGE command from any logical partition that has access to the associated master data set. XCOUPLE PURGE processing ensures that the session is not active in another logical partition in the same GRS ring.
The XCOUPLE DELETE and XCOUPLE PURGE commands might fail to delete the COUPLE member of the session's state data set because of an error. In this case, you will have to delete the COUPLE member using a data set utility program if you intend to add the session as a coupled session again.
Attention: After you have issued the XCOUPLE command with either the RELEASE, DELETE, or PURGE parameter, data for the specified session may not be consistent with the other sessions in the master session.