Distributed data storage management method

The invention provides a distributed data storage management method, belonging to the field of computer communication. The distributed data storage management method comprises the following concrete steps: data is generated by a data source layer; the generated data enters into a data processing layer; segmentation data processed by the data processing layer enters a data transmission layer; the segmentation data is packaged into a data pocket by the data transmission layer; the data packet is transmitted to a data storage layer through an SCSI (small computer system interface) protocol or an IP (internet protocol); the received data packet is unpacked and stored by the data storage layer; the data storage layer refers to a plurality of sub storage array nodes; and a data segmentation is stored in each storage array node. With the adoption of the distributed data storage management method, compared with the prior art, continuously increased user data is stored by utilizing a distributed RAID (redundant array of inexpensive disk) storage array, so that data failure risks are effectively reduced, the data restoring time is reduced, the storage capacity is conveniently expanded, the cost is reduced, and a large amount of maintaining cost is saved.