AEM backup

[jakej40603950]

If you have an AEM setup with an author and multiple publishers in a farm each with their own datastore (each instance has its own datastore), would you have to backup each instance separately?

Or the same backup can work for other instances too?

I'm specifically asking about the repository and not the datastores.

[Ravi_Pampana]

Unless you have different data in each publishers having backup of 1 publisher and author is sufficient.