[HPDD-discuss] Comparing lustre and hadoop distributed filesystem..

Hi, All I have been reading http://wiki.lustre.org/images/1/1b/Hadoop_wp_v0.4.2.pdfFile link where it talks about how lustre can be more efficient for BigMapOutput kind of application. I just thought to try my hands comparing HDFS Vs Lustre. To Test it, I have 1 MDS, 2 OSS/OST and 2 Lustre Client running. My Plan is to install Hadoop on 2 Lustre Clients. I am going to run wordcount example with this setup Versus I have 1 Namenode and 4 DataNode and general Hadoop + HDFS setup. I wonder how am I going to compare HDFS and Lustre through what number of nodes to actually equilibrium the setup? If I take 1 MDS, 2 OSS/OST and 2 Lustre Client vs 1 Namenode and 4 DataNode. Will this setup be balanced comparison. Please suggest.