1. Amazon S3. http://aws.amazon.com/s3/. Amazon S3. http://aws.amazon.com/s3/.
2. Amazon SimpleDB. http://aws.amazon.com/simpledb/. Amazon SimpleDB. http://aws.amazon.com/simpledb/.
3. Apache Hadoop YARN. http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/YARN.html. Apache Hadoop YARN. http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/YARN.html.
4. HDFS 1623: High Availability Framework for HDFS NN. https://issues.apache.org/jira/browse/HDFS-1623. HDFS 1623: High Availability Framework for HDFS NN. https://issues.apache.org/jira/browse/HDFS-1623.
5. HDFS Name Node. http://wiki.apache.org/hadoop/NameNode. HDFS Name Node. http://wiki.apache.org/hadoop/NameNode.