fdb hammer ========== Description ----------- Mimic the load produced by a writing process (I/O server) within a forecast simulation. This tool takes a sample GRIB file containing one field, and repeatedly resets the metadata keys on this GRIB before writing the contents to the configured FDB. The data written in each iteration is unchanged. Usage ----- ``fdb hammer [--statistics] [--read] [–nensembles=] [--number=] --nsteps= --nlevels= --nparams= --expver= --class= `` Options ------- +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--statistics`` | Report statistics after the run | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--read`` | Read rather than write the data | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--nsteps=integer`` | Number of steps. Data will be flushed after each step | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--nensembles=integer`` | Number of ensemble members. If specified, GRIB supplied must support keyword number. | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--nlevels=integer`` | Number of levels | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--nparams=integer`` | Number of parameters | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--expver=string`` | Expver to set on the data | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--class=string`` | Class to set on the data | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--number=integer`` | The first ensemble member number to use | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+ | ``--config=string`` | FDB configuration filename. | +----------------------------------------+---------------------------------------------------------------------------------------------------------------------+