right sizing, it means amount of memory, the CPU processing power which needs to be calculated.
requirements. One can use any or all of the methods to calculate the size for their SAP HANA instance.
implementation from scratch with limited details about the data models for SAP BW scenario.
- Standalone HANA
- SAP NetWeaver BW powered by SAP HANA
- HANA Rapid Deployment Solutions
Start the QuickSizer tool: https://websmp109.sap-ag.de/quicksizer
Create New Project
Choose Standalone HANA
HANA memory sizing is derived from the size of the tables in the source database. Note that only tables must be taken into account. Space for indexes, temporary table spaces etc. must be excluded. Run the sizing script attached to SAP note 1514966 to obtain correct size information from your source database system catalog.
The number of users is optional. If you enter a user number, Quick Sizer checks if the CPU requirements are met by certified hardware configurations.
Specifics for Standalone HANA
Enter the compression factor, i.e. the ratio of the sizes of uncompressed data tables (without their indexes) on the source database and the memory requirements of these tables in HANA. We strongly recommend using the default value if you do not have reliable information justifying a different compression factor.
Specifics for SAP NetWeaver Powered by SAP HANA
prepare the SAP HANA appliance system as per the calculated results.
temp table spaces, etc.)
which analyze the database catalog and determine the overall database table’s footprint for both row store and column store.
calculate the HANA DB size. Please make sure that you extract the platform specific script along with the file “load_RowStore_List.sql” before
you execute the script.
SAP has provided the sizing formula based on the output from the sql script. Use the output from sql script to calculate the RAM size and Disk
RAM = (colstore tables footprint * 2/4 + rowstore tables footprint /1.5) * C1) + 50 GB (HANA Cache and Additional Services)
e.g: RAM: (4.09 *2/4 + 8.33/1.5)*5) + 50 GB = 88 GB
Disk = (Disk – Persistence (4*RAM) + Disk – Log (1*RAM))
e.g: (4*88 + 1*88 = 440 GB)
SAP HANA Sizing Using ABAP Report:
Starting with the BW version 7.3 SP5 you can run the SAP BW on SAP HANA DB platform, In order to migrate an existing SAP BW system from any DB platform to SAP HANA, SAP recommends using the new ABAP sizing report /SDF/HANA_BW_SIZING for SAP BW.
- The ABAP report provides much better accuracy of sizing results.
- Handles source DB compression ration
- Uses table type specific compression factors
- Produces detailed results as compared to DB scripts or quick sizer tool method
- ABAP report is independent of source database
- Option to select the future growth calculation of memory and disk size
The pre-requisite for ABAP report /SDF/HANA_BW_SIZING is support tool plug-in version ST-PI 2008_1_7XX SP06
This report obtains list of tables from the ABAP dictionary table (DD02L)
For more details, please refer SAP BW on HANA Sizing Report: https://websmp209.sap-ag.de/~sapidb/012006153200000051552013E/SAP_BW_on_HANA_Sizing_Report_V1_4.pdf
The important benefit for the right amount of SAP HANA sizing is to achieve the unparallel speed to access and output real-time data. SAP HANA’s in memory storage capacity allows the processing of massive quantities of real-time data to provide the immediate results to end users because of the huge amount of memory.
The right sizing at the start of the project will help in getting the ROI on SAP HANA and help in reducing the future maintenance cost because of the data volume growth over the period of time.
The SAP HANA sizing will help in identifying the requirement of single node system or scale out system requirements based on the existing
system data volume and future growth analysis
The need for SAP HANA sizing is very important in the initial phase of SAP HANA implementation. Improper sizing or missing sizing exercise will lead to various issues in terms of performance and the whole purpose of HANA implementation will be lost.
SAP Note 1736976 – Sizing Report for BW on HANA
SAP Note 1514966 – SAP HANA 1.0: Sizing SAP In-Memory Database
How To Size SAP BW on HANA