Distributed file system means that the physical storage resources managed by the file system are not necessarily directly connected to local nodes, but connected to nodes through computer networks. The design of distributed file system is based on client/server mode. A typical network may include multiple servers accessed by multiple users. In addition, peer-to-peer functionality allows some systems to play the dual roles of client and server.

HBase is a distributed, column-oriented and open source database. This technology comes from the Google paper "Bigtable: Distributed Storage System of Structured Data" written by Fay Chang.

Yonghong data mart is a data storage and data processing software based on its own technology. The distributed file storage system (ZDFS) of Yonghong Data Mart is a transformation and expansion based on Hadoop HDFS, which manages and stores files stored on all nodes in the server cluster in a unified way.