Tuesday, May 31, 2016
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
5-inch ARCHOS 50d Oxygen Retails For EUR 150
Heterogeneous Systems Architecture 1.1 Specification Launched With Multi-Vendor Architecture Support
Micron Debuts 3D NAND 1100 and 2100 SSDs
CyberLink Power DVD, Power Director, To Support VR Content
Hackers Attacked Myspace
Sony Xperia X Series Coming to the United States
Computex: New Dell 10 2-in-1 Laptops Are Starting At $249
Computex: Intel Launches 10-core Core i7 Processor Extreme Edition And Xeon Processor E3-1500v5 Family
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > PC Parts > New Tec...
Last 7 Days News : SU MO TU WE TH FR SA All News

Thursday, May 22, 2014
New Technology Quadruples SSD Speed


A Japanese research team has developed a technology to significantly improve the writing speed, power efficiency and product life of SSDs.

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.

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. To cope with the issue, 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.

To address this issue, last year a research team at the Department of Electrical, Electronic and Communication Engineering, Faculty of Science and Engineering of Chuo University, developed a method to prevent data fragmentation by making improvements to middleware that controls a storage for database applications. It makes the "SE (storage engine)" middleware, which assigns logical addresses when an application software accesses a storage device, and the FTL (flash translation layer) middleware, which converts logical addresses into physical addresses on the side of the SSD controller, work in conjunction.

Now the same team has developed a more versatile method that can be used for a wider variety of applications.

The new method forms a middleware layer called "LBA (logical block address) scrambler" between the file system (OS) and FTL. The LBA scrambler works in conjunction with the FTL and converts the logical addresses of data being written to reduce the effect of fragmentation.

Specifically, instead of writing data on a new blank page, data is written on a fragmented page located in the block to be erased next. As a result, the ratio of invalid pages in the block to be erased increases, reducing the number of valid pages that need to be copied to another area at the time of garbage collection.

In a simulation, the research team confirmed that the new technology improves the writing speed of SSD by up to 300% and reduces power consumption by up to 60% and the number of write/erase cycles by up to 55%, increasing product life. Because, with the new method, it is not necessary to make any changes to NAND flash memory, and the method is completed within the middleware, it can be applied to existing SSDs.




Previous
Next
ASUS Announces New Strix Brand        All News        LG Releases Quickcircle Case For G3
ASUS Announces New Strix Brand     PC Parts News      Toshiba Announces 5TB, 7,200 RPM Enterprise HDD

Get RSS feed Easy Print E-Mail this Message

Related News
Samsung Rolls Out First 512-Gigabyte NVMe SSD in Ultra-small BGA Package
Computex: Patriot Announces New Spark SSD
Patriot Announces 2TB Ignite SSD
Plextor To Showcase Its Gaming Grade SSDs at Computex 2016
SSD Adoption in Notebooks To Increase This Year As TLC NAND Market Matures
Samsung Expands 750 EVO SSD With Availability and Increases Capacity to 500GB
OCZ RD400 NVMe SSD Series Released
Kingston Starts Shipping New UV400 SSD
TDK Launches New M.2, mSATA, and HalfSlim SSD modules
AMD Radeon R3 SSDs Released
SanDisk Z410 Is A Half-Terabyte SSD For Everyday Computing
Micron Unveils New NVMe PCIe SSDs, New Flash-storage Solutions For Open Source Data Centers

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2016 - All rights reserved -
Privacy policy - Contact Us .