The reason for this is that there aren't so many HANA Scale-Out installations out there (in the hundreds), and most of those fall into one of two categories:
- Small enough that table placement issues weren't a problem
- Big enough that an expert advised on table placement
I'm not sure specifically what you want to know though - it's not clear from your question. But...
- Small tables will always sit on one node (on a round robin basis, so all nodes will be used)
- Bigger tables will be partitioned automatically and will distribute across a number of nodes
- The row store objects e.g. Basis tables always sit on the master node (row objects on slave nodes perform badly)
- The column store objects (DSO, Cube) always sit on slave nodes which is why you need at least 3 active nodes for BW
As you can imagine, the above strategy can cause problems with very large tables, in which case you may need expert advice.
John