| 摘要 |
<p>Provided are a data copy management device and data copy method thereof, the data copy method comprising: employing a Hash algorithm to obtain the Hash values of a plurality of source data blocks derived from source data; transmitting the Hash values to a target storage side, so that the target storage side determines, based on the received Hash values, whether to directly generate source data blocks or let a source storage side transmit source data blocks to the target storage side; when receiving the first feedback from the target storage side, ignoring the source data blocks; and when receiving the second feedback from the target storage side, transmitting the source data blocks to the target storage side. The present invention improves the copy speed of a special data block via the above method, thus saving CPU and network resources and reducing copy time.</p> |
