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When the Deferred Host Disconnect (DHD) option for the OSA-ICC controller is enabled, the OSA-ICC controller defers reporting the MCS console disconnect status to z/OS for a period specified by the DHD option.
If CA Automation Point's MCS session reconnects before the deferred disconnect time expires, then the OSA-ICC controller automatically simulates the 3270 CLEAR key, triggering z/OS to reformat the console screen and to continue sending console messages. In this case, CA Automation Point's MCS session automation automatically resumes upon reestablishing a connection.
If the deferred disconnect time expires before CA Automation Point's MCS session reconnects, the OSA-ICC controller signals z/OS that the MCS console is disconnected and the MCS console status is set to OFFLINE. In this case, once CA Automation Point's MCS session reconnects, the operator must manually vary the MCS console back to the ONLINE status before MCS session automation can be restarted.
Note: For more information on the DHD option, see the IBM Redbook OSA-Express Integrated Console Controller Implementation Guide.
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