A Risk Analysis of Disk Backup or Repository Maintenance
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Overview: In this research paper, the researchers consider the problem of formulating optimal and desirable policies for maintaining systems undergoing change and discuss a simple model of disk backups and other maintenance processes that include change to computer data. The researchers determine optimal strategies for scheduling such processes. A maximum entropy model of random change provides a simple and intuitive guide to the process of sector based disk change and leads to an easily computable optimum time for backup that is robust to changes in the model.