Migration of BW to HANA Data Base

Hi Experts,
For Migration of BW 7.3 SP7 to HANA Data Base , I would like to know procurement details for HANA data base.
suppose current Database used by BW in production is 468GB (51%), assuming for HANA database (ROW and column store) it may require say 350GB space.
In that case , how many CPUs will be required??
as per details i believe , production system can be only on 1 HANA DB, and for Dev. and Quality we may require separate HANA BOX.
Also, w.r.t. Master and slave, at least 2 BOX are necessary (since scale out option is possible).
So does that mean , total 4 BOX are required?? or 2 HANA BOX are enough, may be of T-shirt size 'M' 4 CPU sockets.
Please correct me if this is not the case..
Thanks and Regards,
Amit.

Hi Victor,
please check the documentation for migrating data flows: http://help.sap.com/saphelp_nw04s/helpdata/en/43/fa2f42e8fc6befe10000000a11466f/frameset.htm.
Regarding the dependencies of DataSource object types (RSDS or ISFS) and source systems, resp. regarding replication of DataSources please see http://help.sap.com/saphelp_nw04s/helpdata/en/43/5fc0680a876b7de10000000a422035/frameset.htm.
Best Regards,
Cornelia

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