Hi 余建军,
Thank you for posting in the Microsoft Community Forum.
Based on your description, I understand that the question is related to System Center Data Protection Manager.
Since there are no dedicated System Center Data Protection Manager engineers in this forum, to be able to get a quick and effective handling of your problem, I recommend that you repost your question in the Q&A forum, where there will be dedicated technicians to give professional and effective answers.
Here is the link to the Q&A forum.   
Questions - Microsoft Q&A 
Click the "Ask a Question" button in the upper right corner to post your question and select the "Microsoft System Center" tag and any other tags related to your question.
I hope the above information is helpful.