hotpatch and downtime modes R12.2

[rajeev]

Hello erman,

If we apply any patch in either hotpatch mode or downtime mode,Will the next prepare phase be able to recognize the changes and perform the sync?

Thank you,
rajeev

[ErmanArslansOracleBlog]

Both in downtime mode and hotpatch mode, adop applies the patches directly to the run file system and run edition of the EBS database.

As for your sync-related question;

Here is what Oracle says:

Directories that contain code deployed to the application tier during downtime patches  must be registered with the custom synchronization driver, to ensure successful automatic file system synchronization by the adop synchronization process.

During adop prepare, the sync will be done using the Custom Synchronization Driver.
You may consider running fs_clone after these kinds of hot or downtime patches as well..