Sciweavers

Share
CODES
2009
IEEE

FRA: a flash-aware redundancy array of flash storage devices

9 years 10 months ago
FRA: a flash-aware redundancy array of flash storage devices
Since flash memory has many attractive characteristics such as high performance, non-volatility, low power consumption and shock resistance, it has been widely used as storage media in the embedded and computer system environments. In the case of reliability, however, there are many shortcomings in flash memory: potentially high I/O latency due to erase-before-write and poor durability due to limited erase cycles. To overcome these problems, a RAID technique borrowed from storage technology based on hard disks is employed. In the RAID technology, multi-bit burst failures in the page, block or device are easily detected and corrected so that the reliability can be significantly enhanced. However the existing RAID-5 scheme for the flash-based storage has delayed response time for parity updating. To overcome this problem, we propose a novel approach using a RAID technique in flash storage, called Flashaware Redundancy Array. In this approach, parity updates are postponed so that they ar...
Yangsup Lee, Sanghyuk Jung, Yong Ho Song
Added 20 May 2010
Updated 20 May 2010
Type Conference
Year 2009
Where CODES
Authors Yangsup Lee, Sanghyuk Jung, Yong Ho Song
Comments (0)
books