New SAP Note 3452648 – HANAonPOWER – DLPAR Memory operation not visible in SAP HANA – only some specific newer OS are affected: SLES 15SP4 and 15SP5 and RHEL 8.x –

for details please see

https://me.sap.com/notes/3452648/E (SAP S-UID required)

or

https://ibm.box.com/v/SAPNote3452648DLPARMemNotVisi

Thanks to Jens (Gleichmann) for providing this info :-))