Scientists in France and Japan, as part of a joint project, were able to bring data storage to a completely new level of energy efficiency. In this way, innovations can dramatically reduce energy consumption when storing data in storage devices.


Problem Description:


Since there is a global avalanche of zettabytes of data, this is very timely. When expanding communication channels and increasing the amount of content, such a breakthrough is extremely important.




According to the analysis – by 2035-40, the consumption of this data will begin to significantly affect the global energy balance. Therefore, we urgently need technologies that can dramatically reduce the level of energy consumption. After all, the process of writing and erasing is based on electromagnetic effects, which can be obtained in another way.


More detailed:


Researchers from the IDC group concluded that by 2025, the amount of stored data will be more than 175 zettabytes. In addition, the upward trend will continue. Of course, there are also modern solutions in this direction. For example, these are advanced storage technologies.


Economic parallel:


Companies constantly have to solve the issues of optimizing the IT infrastructure. This is an extremely important aspect that is receiving more and more attention. And data storage is one of those things.



Storage optimization, in addition to virtualization, includes many implicit options. These include: deduplication, compression, dynamic memory allocation, and others. As a result, it is possible to reduce energy consumption by reducing storage volumes. And the figures are very impressive-the savings reach 80%!


The essence of the study:


The French University of Lorraine and the Japanese University of Tohoku are leaders in energy-saving technologies in data storage. Their development consists in the application of spintronics and obtaining a reaction to a change in the magnetic state of the magnetic layer due to femtosecond laser pulses.




The working time of exposure to an ultrashort pulse is only 30 femtoseconds. During this time, the heterogeneous structure changes and the spin current is generated, which switches the ferromagnet.


That is, there is a variant of changing the state of the magnetic layer due to a laser pulse. This is much more economical in comparison with modern technologies.




Of course, this technology is still in the laboratory research. However, its potential can reduce the final energy consumption of data storage by several times.

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