Multi-copy read-write method and device

The invention discloses a multi-copy read-write method and device, and relates to the technical field of computers, and the method comprises the following steps: configuring the number of copies required for storing data, a period interval for collecting computer state information and a small file threshold value; according to the configured periodic interval, periodically collecting state information of a plurality of computer devices in the cluster, the state information including a network state, a load state, a storage unit residual capacity and downtime information; receiving a write request of data carried by the terminal, and selecting a plurality of target storage units according to the number of configured copies and the collected state information; performing write operation on the plurality of selected target storage units, storing data carried by the terminal write request to the plurality of target storage units, and recording a plurality of storage results; and corresponding measures are taken.