Tuesday, October 21, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Microsoft Is Rolling Out First New Windows 10 Preview Build
Yahoo Reports High Revenue and Profit
New Samsung Galaxy S5 'Plus' Released With Faster Processor
Google, Facebook And Comcast Spend The Most On Lobbying
Google Play Music App To Follow Your Mood
Login To Google Using A USB Security Key
Toshiba Debuts New 2-in-1 Convertible PC with a 360-Degree Design
Acer Leads The Growing Chromebook Market
Active Discussions
Copied dvd's say blank in computer only
How to generate lots of different CDs quickly
Yamaha CRW-F1UX
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
 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's 840 EVO Firmware Update Fixes Read Issues
Fujitsu Relases New Extreme Series SSDs
New Solid State Drives Have Self-destructing Features
SanDisk Introduces New X300 SSD And Client SSD Upgrade Service For Corporate Environments
Samsung Starts Producing 3.2-Terabyte NVMe SSD Based on 3D V-NAND for Severs
Micron M600 SSD Released With Dynamic SLC Cache
HGST Introduces NVMe PCIe SSDs, 10TB HDD
SanDisk Releases The TLC-based Ultra II SSD
Toshiba Responds To Samsung, Introduces 3-Bit SSD
Samsung Introduces SAS-interface SSD
Phison To Release Quad-Core PS3110 SSD Controller
Samsung Introduces SAS-interface Solid State Drive For Enterprises

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .