Gone are the days of keeping every document in paper format with files, now electronic storage devices overtook it completely. However importance of the documents is still the same and even increasing with increased complexity of daily life routines and business. So one point which we generally overlook for our personal data (mostly stored on computer hard disk) is to make sure that data is being available even in case of hardware or software failure and moreover it should be safe, and away from malicious hands.
Continuous availability of data is very much important to ensure that your work is being performed on time without any loss due to unavailability of data. However if your data is kept on a single location, there might be a risk that that location may not be available or is not in workable condition due to some problem. So the simple solution, to ensure the availability of data, is to make data available from more than one locations. It means that data should be placed at two ore more locations (depending upon importance of data), and data should be updated on all replication sites within a reasonable time duration. Following it, if any site is not working due to some problem, you can anytime switch to the alternative location and hence can continue your work without much delay. This is a solution to ensure the continuous availability of data and can be fulfilled by scheduled backup. Business Entities uses many commercial software to take the data backup, however, a home user may not need those heavy solutions. There are many free backup software available for home users. One of such tool is 'Comodo Backup', which is free available and is a good software for home users requirements. It provides following facilities:
