inifile_checker –> enable = True  &  [inifile_checker]/replicate = true

Key Highlights :

1. [inifile_checker]/replicate = true- This parameter is very useful in the scenario where we have muli -tier and multi-target replication setup in the landscape .
2. If we are changing any parameter in the primary site and [inifile_checker]/replicate = true- parameter is enabled then automatically it will be reflected in the secondary site .
3. It helps to sync-up the parameters across all the HANA sites .
4. If we don’t have [inifile_checker]/replicate = true : parameters set on HANA then there are chances that if we are changing any parameter in the primary site then it may be missed to set on secondary site and cause unwanted issues.
5. [inifile_checker]/enable=true checks differences of ini file parameters between primary and secondary systems in a system replication scenario.
6. [inifile_checker]/enable=true –> Description: Enables (true) / disables (false) the watchdog that checks differences of ini file parameters between primary and secondary systems in a system replication scenario.

Values: true, false

Default: true

Restart required: Yes

Validity: All SAP HANA revisions

How to automatically replicate the parameter in secondary
HANA system can be configured to automatically add the parameters to secondary site.
You can enable the auto replication of any parameter change in Primary to secondary by enabling following parameter:
[inifile_checker]/replicate = true
You can set the parameter by executing SQL:
ALTER SYSTEM ALTER CONFIGURATION (‘global.ini’, ‘SYSTEM’) SET (‘inifile_checker’, ‘replicate’) = ‘true’ with reconfigure;

Ref: Frequently Used Configuration Parameters in SAP HANA & HANA Admin Guide