Do HANA parameters are case sensitive

Dear Friends,

I have query related to HANA Log Mode parameter. To understand is this parameter is case sensitive ?

1. 1.I have set Log Mode  parameter as OVERWRITE  , automatic log backup was enabled (Though this parameter show in disabled state after setting in Overwrite mode) and bounced HANA DB.

In this case, it generated the archive log files in /hana/log-backup/* , Means OVERWRITE parameter was not adapted.

1. 2.I have disabled  automatic log backup, set log mode parameter as  OVERWRITE  and bounced HANA DB.

In this case,  it has generated log segment files in /hana/log/mnt*/* ,  means OVERWRITE parameter was not adapted.

When I set OVERWRITE mode in small letters “overwrite” then the overwrite mode was adapted by HANA.

Regards,

Sahil