Enterprise Manager Generic (MOSC)

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Deferred Data Migration: how long will it run

edited Jun 9, 2020 4:23AM in Enterprise Manager Generic (MOSC) 10 commentsAnswered ✓

Hi all,

From the upgrade guide to 13.4:

•If you have to stop the Enterprise Manager system for postupgrade maintenance, then select Disable DDMP Jobs to disable the DDMP jobs. If you do not plan to stop the Enterprise Manager system for postupgrade maintenance, and hence do not want to disable the DDMP jobs, then do not select the option.

Deferred Data Migration (DDMP) is a post-upgrade activity to migrate the format of the data stored in an earlier release of Enterprise Manager to the format compatible with the upgraded Enterprise Manager system. The migration activity is essentially a job in Enterprise Manager that is submitted when the Oracle Management Repository gets upgraded, and is scheduled to run in the background when the upgraded Enterprise Manager system starts functioning.

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