Next-Generation Memory and File System
PRAM memory architecture
According to the improvement of semiconductor techniques, the new class of memory such as PRAM(Phase Change RAM) is ready for wide use. We are catching this new trend of memory area and researching on the new architectures using this new class memory. Main Memory and Storage architectures are our core research interests.
Youngwoo Park, and Kyu Ho Park, "High Performance Scalable Flash File System using Virtual Metadata Storage with Phase-Change RAM" IEEE Transactions on Computers, 2010
SSD : Buffer & FTL Management
SSD is currently becoming a trend of storage. It compromise and replace HDD which was dominant storage hardware before. We are studying the infrastructure of SSD such as SSD Buffer and FTL layer.
Gyudong Shim, YoungWoo Park, Kyu Ho Park, "A Hybrid Flash Translation Layer with Adaptive Merge for SSDs" ACM Transactions on Storage, 2010
File System & Storage System : Performance & Reliability
A RAID is one of the famous storage system for individual and industrial use. The RAID controller or driver has its own cache that is distinguished from the page cache of the host computer. The gray boxes indicate our schemes, contiguity transform for destaging and massive stripe prefetching, adaptive strip prefetching, and strip-aligned sequential prefetching for prefetching and buffer management.
"Independency and Parallelism of Sequential Prefetching in Striped Disk Arrays", Sung Hoon Baek and Kyu Ho Park, IEEE Transactions on Computers 2008
"Prefetching with Adaptive Cache Culling for Striped Disk Arrays", Sung Hoon Baek and Kyu Ho Park, The 2008 USENIX Annual Technical Conference, June 25-27 2008, pp.363-376
"Matrix-Stripe-Cache-Based Contiguity Transform for Fragmented Writes in RAID-5", Sung Hoon Baek and Kyu Ho Park, Transactions on Computers, Vol. 56, No.8, August 2007, pp.1040-1054
"Massive Stripe Cache and Prefetching for Massive File I/O.", Sung Hoon Baek, Kyu Ho Park, IEEE International Conference on Consumer Electronics, pp.5.3-5, Jan, 2007