Yes, it's a cluster. I totally concede. I just meant it's not the same kind of clustering as Hadoop/HBase, Vertica, VoltDB, Cassandra, Riak, Greenplum, Netezza

Yes, it's a cluster. I totally concede. I just meant it's not the same kind of clustering as Hadoop/HBase, Vertica, VoltDB, Cassandra, Riak, Greenplum, Netezza, Teradata or even DB2-Cluster. If clustering is a spectrum where Dynamo-style systems like Riak are on one side and my Dell SMP system is the other extreme, the Sun cluster is probably closer to the SMP system than to the Riak cluster.