Soooo... SAP cannot automate a SAP -> SAP migration?
So some years ago, you moved your ERP to a SAP application on the basis, among other supposed benefits, of having all your enterprise data consolidated in a single database. That would have make it much easier to mange and report. And of course, your ERP vendor should take care of future upgrades.
Now SAP is offering you an "upgrade" to a supposedly much more faster and efficient database platform (HANA). However, SAP is not automatically moving your data from the existing database to the new database. Also, you have what appears to be too much data for your new, remember, faster and more efficient platform, to digest.
So exactly what was the benefit of moving to SAP in the first place? Specially if you neither have an automated migration path to new versions nor the same database capacity and scalability in the new versions?