Performance and Reliability Enhancement of Flash-Memory Storage Systems
- LecturerDr. Yuan-Hao Chang (National Taipei Univeristy of Technology)
Host: Dr. Da-Wei Wang - Time2010-06-28 (Mon.) 10:00 – 12:00
- LocationAuditorium 106 at new IIS Building
Abstract
Abstract:
Flash-memory storage systems play an important role in embedded
systems and are widely adopted in various application domains such as
consumer electronics, robotics, and aviation. In recent years, the
flash-based solid-state drive (SSD) has become a popular candidate for
the replacement of hard disk drives. Enterprises are also designing
new storage systems with flash memory as the cache system or
main-storage system to reduce the energy consumption and improve the
performance/reliability of their data centers.
However, due to the advances of manufacturing technologies,
reliability and performance have become critical issues of flash-based
storage systems. In this talk, we will talk about how to solve these
issues in different layers of the software stack. For the performance
issue, a driver-layer caching algorithm and a file-system-aware
flash-translation-layer design will be introduced to show how to
improve the performance of flash-memory storage systems. For the
reliability issue, we will talk about how to improve the endurance of
flash memory with a static wear leveling design. Meanwhile, a
commitment-based management strategy will be presented to manage
low-cost flash-memory chips with the considerations of the scalability
and bad block issues.