During any restore procedure it is critical that no application activity occurs in the databases being restored until you are completely finished with the backup restore and journal restore, and you have completed any desired application-level validation. If you have, in your application or operating environment, a mechanism to ensure that no user activity can occur when Caché is started you can use that mechanism; for example, if your application is entirely web-based, shutting down the web servers may be sufficient to ensure that only administrators involved in the restore procedure have access to the system.(https://cedocs.intersystems.com/latest/csp/docbook/Doc.View.cls?KEY=GCDI...)

Can setting switch meet the demand?

I am doing work related to backup and restore, to avoid unexpected problems with other user operations during restore, so I started in emergency mode

still not work