Hadoop 1.0 is a significant milestone in being the most stable and robust Hadoop release tested in production against a variety of applications. It offers improved performance, support for HBase, disk-fail-in-place, Webhdfs, etc over previous releases. The next major release, Hadoop 2.0 offers several significant HDFS improvements including new append-pipeline, federation, wire compatibility, NameNode HA, further performance improvements, etc. We describe how to take advantages of the new features and their benefits. We also discuss some of the misconceptions and myths about HDFS.