Title :
HighLight: a file system for tertiary storage
Author :
Kohl, John ; Stonebraker, Michael ; Staelin, Carl
Author_Institution :
California Univ., Berkeley, CA, USA
Abstract :
HighLight, a file system combining secondary disk storage and tertiary robotic storage that is being developed as part of the Sequoia 200 Project, is described. HighLight is an extension of the 4.4BSD log-structured file system (LFS), which provides hierarchical storage management without requiring any special support from applications. The authors present HighLight´s design and various policies for automatic migration of file data between the hierarchy levels. The performance of HighLight was compared with that of the 4.4BSD LFS implementation. The initial results indicate that HighLight´s performance is comparable to that of 4.4BSD LFS for disk-resident data, and the overhead associated with accessing data from the tertiary cache is negligible
Keywords :
buffer storage; digital storage; file organisation; storage management; 4.4BSD log-structured file system; HighLight; Sequoia 200 Project; automatic migration; disk-resident data; file system; hierarchical storage management; secondary disk storage; tertiary cache; tertiary robotic storage; tertiary storage; Cache storage; File systems; Laboratories; Operating systems; Project management; Robotics and automation; Sprites (computer); System performance; Tail; Writing;
Conference_Titel :
Mass Storage Systems, 1993. Putting all that Data to Work. Proceedings., Twelfth IEEE Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-8186-3460-X
DOI :
10.1109/MASS.1993.289765
