How to disable WLSDF on file (WLS 10.3) - Linux 64 bit

 Hi,
The file WLS_DIAGNOSTICS000000.DAT in DOMAIN/servers/SERVER/data/store/diagnostics/ is growing up very fast.

Tried to set the feature off using the options  :
-D_Offline_FileDataArchive=true
-Dcom.bea.wlw.netui.disableInstrumentation=true

but it didn't work.

The only workaround being used is :
1) Stop weblogic domain
2) Remove the diagnostics files
3) Start weblogic domain

Any idea what else can be used in this case ?
Thank you very much,
Stephan