*Glossary* DTS: Distributed Table System, not a bigtable DFS: Distributed File System
DFS is better for unstructed data, but DTS is better for structed data, data warehouse is structed, so I think a table is better than a file. DTS is following: 1. Break a logic big table into a many physical small table 2. The same size blocks is not necessary 3. The order of blocks is not necessary 4. Only store structed data 5. Support block indexes 6. Support deleting and updating 7. The interfaces are SQL, but only a block 8. Spliting a table horizontally and vertically is supported at the same time 9. 。。。