Problems of Data Backup Algorithmization

Backup is the process of directly creating backup copies of data, files, system, etc. The available backup methods and methods can be divided into three types: block backup, application-level data backup, or file-by-file backup. At the same time, there are many backup algorithms, and each of them has its own characteristics and corresponding advantages and disadvantages. An important feature of each algorithm is to maintain a trade-off between the processes of backing up data and restoring it if necessary. And important characteristics are the speed of creating copies, the disk space occupied by copies and the speed of recovery.