HighLight: a file system for tertiary storage

Author

Kohl, John ; Stonebraker, Michael ; Staelin, Carl

Author_Institution

California Univ., Berkeley, CA, USA

fYear

1993

fDate

26-29 Apr 1993

Firstpage

157

Lastpage

161

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MASS.1993.289765

Filename

289765