SAP HANA Sizing for SAP BW

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.

SAP HANA Sizing for SAP BW

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

SAP HANA Sizing for SAP BW

We can start with executing the related report via transaction se38

/SDF/HANA_BW_SIZING

SAP HANA Sizing for SAP BW

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

SAP HANA Sizing for SAP BW

Following two picture will help you to commentate the report output

HANA Memory sizing ;

SAP HANA Sizing for SAP BW

HANA Disk Sizing ;

SAP HANA Sizing for SAP BW

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.

SAP HANA Sizing for SAP BW

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

SAP HANA Sizing for SAP BW

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

 

 

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