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New Middleware Technology Quadruples SSD Speed


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#1 bigfetz

bigfetz

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Posted May 23, 2014 - 10:40 PM

A Japanese research team developed a technology to drastically improve the writing speed, power efficiency and cycling capability (product life) of a storage device based on NAND flash memory (SSD).

The team is led by Ken Takeuchi, professor at the Department of Electrical, Electronic and Communication Engineering, Faculty of Science and Engineering of Chuo University. The development was announced at 2014 IEEE International Memory Workshop (IMW), an international academic conference on semiconductor memory technologies, which took place from May 18 to 21, 2014, in Taipei. The title of the thesis is "NAND Flash Aware Data Management System for High-Speed SSDs by Garbage Collection Overhead Suppression."

With NAND flash memory, it is not possible to overwrite data on the same memory area, making it necessary to write data on a different area and, then, invalidate the old area. As a result, data is fragmented, increasing invalid area and decreasing storage capacity. Therefore, NAND flash memories carry out "garbage collection," which rearranges fragmented data in a continuous way and erases blocks of invalid area. This process takes 100ms or longer, drastically decreasing the writing speed of SSD.

continued http://techon.nikkei...0140522/353388/

 

This is really exciting.

 

Forgive me if I get some things wrong. Just going off what I remember on SSD stuff.

 

SSD's are much faster because they use flash memory. This allows the computer to grab data right from the area it is at rather than having to search it on a disk. This allows for a heavily fragmented hard drive to be pretty much as fast as a defragged hard drive. So the reading is fine. The problem was writing. 

 

This new breakthrough defrags the SSD so that when the computer need to write it doesn't have to find open spaces in the hard drive as much because it essentially defrags the hard drive and leaves an area to simply write all the data in one spot, rather than in multiple spots spread apart. Apparently it would increase the speed of writing by 300%.  

 

Also this isn't a hard ware change so current SSD's could get this update sometime soon when its developed. 






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