deleted files on a redundant system

[MassEffect]

Hello,
There is a redundant system WinCC OA (server A, server B).
On the server B, I deleted some database files manualy (those files were old and needed much room on the hard disk).
As a result of my action, I cannot run server B, the system stops on databaseManager and holds on this position.
Is there any way to correct that, or I have to recreate the redundant system again? (create the redundant serv A, and then serv B)

[leoknipp]

If you want to delete files from the db/wincc_oa directory you need to know exactly which files can be deleted. Otherwise, you can damage the database and the project cannot be started again.
In case of a redundant system you can stop the project on server A, copy the database to server B and start the system.

Best Regards
Leopold Knipp
Senior Support Specialist