Physical disentanglement in a container-based file system
L. Lu, Yupu Zhang, Thanh Do, Samer Al-Kiswany, Andrea Carol Arpaci-Dusseau, Remzi H. Arpaci-Dusseau · 2014
We introduce IceFS, a novel file system that separates physical structures of the file system. A new abstrac-tion, the cube, is provided to enable the grouping of files and directories inside a physically isolated container. We show three major benefits of cubes within IceFS: local-ized reaction to faults, fast recovery, and concurrent file-system updates. We demonstrate these benefits within a VMware-based virtualized environment and within the Hadoop distributed file system. Results show that our prototype can significantly improve availability and per-formance, sometimes by an order of magnitude. 1