TY - GEN
T1 - Designing a true direct-access file system with DevFs
AU - Kannan, Sudarsun
AU - Arpaci-Dusseau, Andrea C.
AU - Arpaci-Dusseau, Remzi H.
AU - Wang, Yuangang
AU - Xu, Jun
AU - Palani, Gopinath
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We present DevFS, a direct-access file system embedded completely within a storage device. DevFS provides direct, concurrent access without compromising file system integrity, crash consistency, and security. A novel reverse-caching mechanism enables the usage of host memory for inactive objects, thus reducing memory load upon the device. Evaluation of an emulated DevFS prototype shows more than 2x higher I/O throughput with direct access and up to a 5x reduction in device RAM utilization.
AB - We present DevFS, a direct-access file system embedded completely within a storage device. DevFS provides direct, concurrent access without compromising file system integrity, crash consistency, and security. A novel reverse-caching mechanism enables the usage of host memory for inactive objects, thus reducing memory load upon the device. Evaluation of an emulated DevFS prototype shows more than 2x higher I/O throughput with direct access and up to a 5x reduction in device RAM utilization.
UR - http://www.scopus.com/inward/record.url?scp=85077092752&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85077092752&partnerID=8YFLogxK
M3 - Conference contribution
T3 - Proceedings of the 16th USENIX Conference on File and Storage Technologies, FAST 2018
SP - 241
EP - 255
BT - Proceedings of the 16th USENIX Conference on File and Storage Technologies, FAST 2018
PB - USENIX Association
T2 - 16th USENIX Conference on File and Storage Technologies, FAST 2018
Y2 - 12 February 2018 through 15 February 2018
ER -