<independent_data_path> and <independent_program_path> path specifications are stored in the registry when the system is installed for the first time. With every subsequent installation or upgrade process where you use SDBINST, these paths will be determined using the information contained in the registry.
You can run more than one SAP DB Server installation on the same host.
The files required to deinstall, verify, and upgrade the installation are created in the
<independent_data_path>\config\install directory when the software is installed. These files should never be modified.