I am attempting to use the Live HDF5 library to continuously write new rows to a 2D HDF5 dataset. I attached the portion of the VI where I am writing the data to the HDF5. I am using an arbitrary waveform generator to generate a signal at 8192 samples/sec and reading them with an oscilloscope at the same rate. I would then like to write each new bunch of 8192 points to a new row in the HDF5 2D dataset. Currently it just appends the data points to the same row in the HDF5 dataset instead of creating a new row. Is what I'm looking for possible? I tried writing the data to a 2D array in LabVIEW and then writing that array to the HDF5 which worked but it uses up memory to quickly so I need to write a new row after every 8192 samples directly to the HDF5.