The technology, which will increase the storage time of data on the SSD in the 2900 times

Solid-state SSDS are becoming more common and are replacing the once popular HDD. The main problem of the nonvolatile NAND memory used in SSD drives is the limited number of cycles of read/write. Now, a team of researchers from Japan presented a new method for combining data compression technology and enhanced reliability of information storage. This, according to the publication Nikkei Technology will increase the life of the SSD is almost 2900 times.

A team of researchers from the Country of the rising sun is headed by Professor Ken Takeuchi from Chuo University. The new method is the use of special hardware and software controller. Now, as a rule, «life-extension» disk use methods of data compression. For example, the most common is the so-called Huffman algorithm. It is that frequently used data is converted into short chains, and the least frequently used information — in long chains. This is done in order to save those cycles for read/write.

Japanese scientists have proposed a slightly different version of the work with data arrays. In addition to the method described above often recurring short chain are recorded in a more reliable memory, and a long chain — in less reliable. But how is «reliability of memory»? Everything is very simple: more robust memory uses 6 or 7 of the 8 possible values in trenutnoj cell. Thus, these memory cells will enable the use of more information without overwriting, which will not only extend the life of the data carrier, but also provide more reliable information storage. In the course of research the Japanese have found that this method of storing 6 or 7 the data value in the cell reduces the chance of errors by 92%.