@maas
Hi,
By default WLSDM folder initialize in weblogic $DOMAIN_HOME folder. If you want to move this folder to another path just create soft link.

1- Shutdown WebLogic admin server properly
2- Move $DOMAIN_HOME/WLSDM folder to /path/to/folder/WLSDM
3- Create link under $DOMAIN_HOME folder.
Linux: ln -s /path/to/folder/WLSDM WLSDM