Pausing and Resuming the Database Server on macOS
If you need to perform maintenance or updates on a Harmony server, you can pause it instead of stopping it completely.
Users who attempt to save a scene while the server is paused will receive a warning message. The server will queue the save and commit the changes when the server is resumed.

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In a command prompt, enter the following command:
$ "/Applications/Toon Boom Harmony 24 Advanced/Harmony Advanced.app/Contents/tba/macosx/bin/dbu" -p

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In a command prompt, enter the following command:
$ "/Applications/Toon Boom Harmony 24 Advanced/Harmony Advanced.app/Contents/tba/macosx/bin/dbu" -P

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In a command prompt, enter the following command:
$ "/Applications/Toon Boom Harmony 24 Advanced/Harmony Advanced.app/Contents/tba/macosx/bin/dbu" -res