Abstract:

Data protection is a vital issue in information age when the data size is rapidly expanded. As a useful data protecting scheme, continuous data protection mechanism can address data outage raised by software and hardware failure, user errors and so on. In order to guide the continuous data protection mechanism design, this paper proposed a universal model for continuous data protection schemes. And then we analyze and proposed the formal description of data replication frequency, recovery time and storage overhead. At last, we evaluated the effectiveness of our model by actual trace in online transaction processing systems.        

Key words: continuous data protection;modeling research;recovery point objective;recovery time objective