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From the Frontiers of Research to the Heart of the Enterprise
O'Reilly Open Source Convention
Sheraton San Diego Hotel and Marina
July 22-26, 2002 -- San Diego, CA



Journaled File System for Linux
Steve Best, IBM

Track: Operating Systems and Applications
Date: Thursday, July 25
Time: 11:30am - 12:15pm
Location: Harbor Island II

IBM has Open Sourced under GPL license and ported its Journaled File System technology to Linux. JFS provides fast file system restart in the event of a system outage. Using database-journaling techniques, JFS can restore the file system to a consistent state in a matter of seconds, versus minutes or hours with non-journaled file systems.

This presentation gives an overview of the architecture, design features, performance characteristics, and administrative utilities of the Enterprise JFS technology. Areas covered include what has been completed and the new features being added to JFS. There are currently four journaling Linux file systems that people have in production (XFS, ReiserFS, ext3, and JFS) part of the talk will do some comparisons of JFS to the other journaling file systems. This session will also discuss new features being worked on in the 2.5.x kernel development tree, in the areas of the file system and I/O.

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