After the BW version 7.3 SP5 we can run SAP BW on SAP HANA platform , before migrate our SAP BW to new HANA platform , SAP recommendation is using the following new ABAP sizing report to calculate new machine specifications.

Before using this report , our system’s ST-PI version has to 2008_1_7XX SP06 or higher.

Our SAP system’s ST-PI version is like below ;

We can start with executing the related report via transaction se38

/SDF/HANA_BW_SIZING

We can fill the below areas regarding to our system and future plans.

Following two picture will help you to commentate the report output

HANA Memory sizing ;

HANA Disk Sizing ;

Our SAP BW system’s report output is shown below ;

For physical memory , recommendation is 256 GB according to our selections before execute the report.

In below picture , we can see that “Needed Store Sizes” shown

System Memory ;

Node with 256 GB.

Available Memory : 244 GB (256 GB – 12 Gb = 244 GB. , you can check above “How to size HANA system” picture)

Needed memory for services / caches : 50 GB.

Free memory for data : 244 GB - 50 GB = 194 GB

Memory for data : 194 GB

System Data ;

Row Store : 0 GB

Master Column Store : 20 GB

Worker Column Store : 4 GB

Memory Services : 50 GB

Total Data : 74 GB

Result ;

 74 GB < 194 GB   OK

You can find the details in the following OSS Note ;

SAP Note 1736976 – Sizing Report for BW on HANA