Flash-Aware RAID Techniques

Flash-Aware Raid Techniques for Dependable and High-Performance Flash Memory SSD


IEEE Transactions on Computers, page 80~92, 2011
Soojun Im : Sungkyunkwan Univ.
Dongkun Shin : Sungkyunkwan Univ.


Conclusion

•Efficient RAID techniques for reliable flash memory SSDs

–The delayed parity update technique

•Reduces the number of flash memory write operations

–The partial parity caching technique

•Exploits the implicit redundant data of flash memory

•Reduce the number of read operations required to calculate the parity

•Reduce GC overheads in flash memory