This paper gives a comparison between them and proposes the repetitious points incremental snapshots based on the same snapshot volume combining with the above two technologies.
论文在比较两者特点的基础上，将两者有机地结合起来，提出了基于同一快照卷的多时间点增量快照。
2
The first time an object is sent to a client, it must include a full state snapshot, but subsequent updates can save on bandwidth by including only incremental changes.
如果是第一次发送给客户端，必须要包含所有状态的数据，后续的更新只需要包含增量的修改，以节省带宽。
3
When unique changes are made to the production environment, the software creates and stores a snapshot of incremental changes at the block level.