Synchronization between servers

I want to synchronize two servers, but I dont know how to generate ocs file, needed for doing that.

I do all like in manual, http://wiki.ocsinventory-ng.org/index.php?title=Documentation:Synchoserv.

If I switch Generate_OCS_FILE to On, should it genearate automatically or  I need manually generate it with some script.

I use the latest version of server 2.2.1 for Unix.

Thanks in advance!