System partition low on space

Hi all,

I have an appliance 5220, which is alerting me that the system partition(?) is running low on space and only has 16% free space available

I've had a look around and it seems the /tmp directory is at fault, using 55gb.  I've cleared infile*, outfile*, errfile* and *.log files using a procedure I have, but it made little difference.

The culprit appears to be these directories, which take 256mb each

256M    ./nbtelemetry_201406230416bix/DATA/nbappliance-hdwr/1/otherfiles
256M    ./nbtelemetry_201406230416bix/DATA/nbappliance-hdwr/1
256M    ./nbtelemetry_201406230416bix/DATA/nbappliance-hdwr
256M    ./nbtelemetry_201406230416bix/DATA
256M    ./nbtelemetry_201406230416bix
256M    ./nbtelemetry_201406260515dqN/DATA/nbappliance-hdwr/1/otherfiles
256M    ./nbtelemetry_201406260515dqN/DATA/nbappliance-hdwr/1
256M    ./nbtelemetry_201406260515dqN/DATA/nbappliance-hdwr
256M    ./nbtelemetry_201406260515dqN/DATA
256M    ./nbtelemetry_201406260515dqN
 (there are many of these folder sets)

can anyone suggest if they should be removed using a specific method, or if they can simply be deleted?  and if I can stop them being generated?

thanks in advance