The occurrence of large area collapse system of our company a few days ago, but the company has been the important things in a unlimited hosting backup, so also does not have too big effect to work, but there are some departments did not seem in the unlimited hosting backup file, so the loss was quite a heavy. A long time ago, I have been concerned about this issue, the file has been placed in a place, if there is no problem, you can’t use? Many foreign enterprises will be widely applied to unlimited hosting, I think this habit we can also learn from others, so from that time as long as the important documents, will be placed in the unlimited hosting.