DATA COPY MANAGEMENT DEVICE AND DATA COPY METHOD THEREOF

摘要

The present invention provides a data copy management apparatus and a data copy method thereof. The data copy method includes: obtaining, by using a hash algorithm, hash values of multiple source data blocks obtained by dividing source data; sending the hash values to a target storage side, so that the target storage side determines, based on the received hash values, whether the target storage side directly generates the source data blocks or a source storage side sends the source data blocks to the target storage side; ignoring the source data blocks when a first feedback fed back by the target storage side is received; and sending the source data blocks to the target storage side when a second feedback fed back by the target storage side is received. In the present invention, a speed of copying a special data block can be improved in the foregoing manner, thereby saving CPU and network resources and reducing copy time.