Why do you want to turn off the the content integrity checker? What has that to do with alf_data?
However alfresco will not start without a minimal content store (alf_data) since alfresco needs to bootstrap the data dictionary and the system store. alf_data also contains a bunch of keystores.
Well, I have a really large repository that I cannot have locally, and I'd still like to have the database locally (that is not that large), and be able to get Alfresco up to run. So basically, semi-testing purposes.
I hoped I could get this working by copying only that minimal content store, but I'm having troubles knowing what exactly I need to copy (tried to blindly copy first year/month from alf_data).