switch off saving of recovery files in Matlab code

Hello community,

I am running Comsol through the Matlab interface. My problem is that the directory assigned to the recovery files is to small to save them which terminates my calculations.

I would like to know how I can change that. I know that I can just uncheck the button on the COMSOL interface but I need the matlab command.

I tried relocating the recovery folder when starting up comsol in the terminal ( I use LINUX) with

comsol matlab -prefsdir /path
and
comsol server matlab -prefsdir /path

but both didn't work. I tried to relocate the folder in my home file
/voglerd/.comsol/v42/recoveries
by changing the file prefs.dir that was under /voglerd/.comsol/v42/
by rewriting the line
general.recovery.recoverydir=/<path/voglerd/.comsol/v42/recoveries>
to
general.recovery.recoverydir=/<newpath>

All that didn't work. Is there a command that you can write into your code before the solver configurations that switches off the saving of recovery files???

Any help would be much appreciated.

Best,

Daniel