This paper has the goal to evaluate the functionalities of a well structured backup system in a business enterprise, showing the importance of good settings, implementation, periodic tests, documentation and records of the process. Furthermore it is demonstrated the consequences when the best practices are not followed. There is a short explanation about what is backup and how the data stored in servers significantly increased its importance. During the course of this paper, tools were analysed and three open-source software where segregated for a comparative analysis, showing the advantages and disadvantages of each. Emphasis was given to the Bacula software. When applying this tool in a business which the backup system was outdated, the Bacula qualities became more evident. Besides its main function, this tool also brought backup policies, that made all the responsible personnel aware about the performed tasks and its guidelines for the correct operation on this business enterprise
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