Inquiry About Changing SAP SID and HANA DB SID in On-Premise High-Availability SAP System

[SAPSupport]

Subject: Inquiry About Changing SAP SID and HANA DB SID in On-Premise High-Availability SAP System

I would like to inquire whether it is possible to change the SAP SID and HANA DB SID in an on-premise SAP system configured for High-Availability. If such a change is feasible, could you kindly provide the detailed steps or procedure required for performing this operation?

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[SAPSupport · Accepted solution]

To rename the HANA instance you would follow the steps described in 

##2550327 How-To Rename an SAP HANA System

For the SAP instance please see

##11692 Renaming the system ID

Regarding the HANA replication
It would be best to unregister the secondary HANA site, do the rename on primary and secondary separately then when both done, re-register the secondary.