Considerations About Renaming HANA Node Hostname

Hello experts,

We have a task to change HANA server hostname from A to B.

As far as I know, we can use rename SAP HANA system function in HLM.

I have some concerns:

1. Should I need to manually change HANA hostname using OS command before or after executing rename in HLM?

2. Any addtional things should we perform after renaming.

Thanks & Best Regards,

Tong Ning