Technology is moving forward faster than ever, but it's not always the case that the solutions of tomorrow are the best fit for the problems of today. In developing a rock-solid practice for data backup and recovery, the best answer is often a hybrid of new and old methods.
However, there is never really a definitive answer for all use cases - which is why policy review and process evaluation is so important and should be a regular part of any data management process.
In recent years, Google have gone on record for how they still make use of tapes to backup their Gmail data; and with the advent of powerful cloud computing so readily available there's no reason not to utilize it as part of your data backup plan.
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