Database was always a bottleneck for MRP performance, since a lot of data must be read and write on each MRP run.
As of SAP enhancement package 6 for SAP ERP 6.0, version for SAP HANA, it is possible to optimize the MRP performance using SAP HANA.
The optimized MRP and Stock-/Requirement List can be activated with the switch LOG_PPH_MDPSX_READ (see note 1768031 for more details).
Corrections for issues related to MRP on HANA can be found on collective notes, for each support package. The following notes are already available for SP00 and SP01:
1833851 Sammelhinweis: Korekturen für PP-MRP on HANA für SP01
1793269 Sammelhinweis: Korekturen für PP-MRP on HANA für SP00
Therefore, keep your system updated with these corrections to avoid known issue.
If you are observing any short dump or problem on transaction MD01N after the upgrade, you must follow the procedure outlined on the following note:
1907934 – MD01N: MRP Live on Hana procedures activation
If you are observing errors during the upgrade that are related to Hana content or database procedures that are used in MRP Live, you must check the following note:
2015205 – MRP Live/Apps – Relevance of Hana content for Support Packag
See also the following blogs for more details about MRP on HANA:
For a list of the features not supported by MRP Live, check the following link from SAP Help:
See also the restrictions for MRP Live on the note below:
1914010 – MD01N: Restrictions for Planning in MRP Live on HANA
At last, the WIKI MRP on HANA FAQ – ERP Manufacturing (PP) – SCN Wiki provides answers to the Frequently Asked Questions on this topic.