(When Continuous Data Maintenance (CDP) came along a few years ago, everyone thought it could replace traditional backup software. At that time, CDP suppliers guessed that IT managers would abandon their original backup software because they required full backups once a week and incremental backups once a day; and use the program to restore to any point in time in the past. CDP can be implemented by hardware or software. Software-based CDP is usually implemented through an agent on every server you maintain (such as a database server)...
CDP.pdf)