Need to find a way to ensure filesystem robustness, without having to spend so much time on verification! Note: Not as sophisticated as database transactions! What should be logged in a journal transaction? Filesystems differ in the actual details that are logged... Changes to file data are not journaled! (This is mostly OK.)

By reducing downtime, enhancing data recovery capabilities, and providing data consistency, file system journaling emerges as an indispensable technique for securing digital assets and maintaining data integrity in an ever-expanding digital landscape.

We propose a novel method to measure the dependability of journaling file systems. In our approach, we build models of how journaling file systems must behave under different journaling modes and use these models to analyze file sys-tem behavior under disk failures.

Jun 9, 2014 · In this paper, we present a new journaling file system for PCM, called Shortcut-JFS, that reduces write traffic to PCM by more than half of existing journaling file systems running on block I/O interfaces.

In this paper we employ a novel benchmarking method-ology called semantic block-level analysis (SBA) to trace and analyze file systems.

Mar 31, 2003 · We present the design of a file system called yFS that consciously reduces disk seeking and handles large files efficiently. yFS does this by using extent-based allocations in conjunction with three different disk inode formats geared towards small, medium, and large files.

Feb 1, 2007 · This paper describes the foundation, design, implementation, and evaluation of DualFS, a new high-performance journaling file system which has the same consistency guarantees as traditional journaling file systems but a greater performance.

May 1, 2015 · In this paper, we present a new journaling file system for PCM, called Shortcut-JFS, that reduces write traffic to PCM by more than half of existing journaling file systems running on...

Apr 1, 2005 · This thesis describes the design, implementation and evaluation of a journaling file system called DualFS. Our main goal is to improve disk I/O by designing a new file system which must have two features: a better performance than that of current file systems, and a fast consistency recovery after a system crash.

In this paper, we explore the two most commonly used approaches for improving the performance of meta-data operations and recovery: journaling and Soft Updates. Journaling systems use an auxiliary log to record meta-data operations and Soft Updates uses ordered writes to ensure meta-data consistency.