Data storage, reading, transmission method and management server and network node

A method for transmitting data includes receiving data storage request sent from the first node by management server, distributing storage space for said data at shared storage region and returning address of said storage region back to the first node, storing said data in shared storage region by the first node as per said address, obtaining address of storage region in shared storage region stored with said data by the second node and fetching said data out from shared storage region by the second node as per address of said storage space for realizing data transmission from the first node to the second node.