Patent ID: 8275752
Filing Date: 2012-09-25
Classification: G06F,H04L

Abstract:
1. A data backup method through a distributed network, adapted to backup an original data stored in a host storage server by a user, the data backup method comprising: establishing a plurality of peer-to-peer connections between the host storage server and a plurality of peer storage servers through a community network system, wherein the host storage server and the peer storage servers are belonged to a storage server group in the community network system; receiving a backup request from the user of the host storage server, wherein the backup request is used to request backing up the original data; dividing the original data into a plurality of data segments according to a segment size; calculating a redundancy corresponding to each of the data segments according to a minimum survival rate and the number of the peer storage servers; generating a plurality of data segment copies corresponding to the data segments according to the number of the data segments, the number of the peer storage servers and the redundancy; distributing the data segment copies corresponding to the data segments to the peer storage servers and generating a metadata having a segment distribution matrix according to a distribution result; and transmitting the data segment copies to the peer storage servers from the host storage server according to the metadata.