Leaving a few links here. From the discussion that has taken place it seems these two would be of interest.<p><a href="http:&#x2F;&#x2F;cscads.rice.edu&#x2F;workshops&#x2F;summer-2012&#x2F;slides&#x2F;datavis&#x2F;HDF5-CScADS.pdf" rel="nofollow">http:&#x2F;&#x2F;cscads.rice.edu&#x2F;workshops&#x2F;summer-2012&#x2F;slides&#x2F;datavis&#x2F;...</a>  Extreme IO scaling with HDF5<p><a href="http:&#x2F;&#x2F;algoholic.eu&#x2F;sec2j-journalling-for-hdf5&#x2F;" rel="nofollow">http:&#x2F;&#x2F;algoholic.eu&#x2F;sec2j-journalling-for-hdf5&#x2F;</a>  HDF5 with a journal