aroprod /home/natalia always-full

I execute this command:

   su amanda -c "amdump DiariaPrueba"


In my log.20060817.2 file i have this:

   START driver date 20060817
   DISK planner aroprod /home/natalia
   START planner date 20060817
   WARNING planner tapecycle (1) <= runspercycle (1)
   INFO planner Adding new disk aroprod:/home/natalia.
   START taper datestamp 20060817 label DiariaPruebaTape01 tape 0
   ERROR planner Request to aroprod timed out.
   FINISH planner date 20060817
   WARNING driver WARNING: got empty schedule from planner
   STATS driver startup time 30.000
   INFO taper tape DiariaPruebaTape01 kb 0 fm 0 [OK]
   FINISH driver date 20060817 time 34.380

what am I doing wrong?