https://www.hairizuan.com/categories/systems/ Recent content in Systems on Experiment, Fail, Learn, Repeat Hugo -- gohugo.io en Copyright © 2026 Hairizuan Noorazman Wed, 16 Sep 2026 10:01:23 +0800 https://www.hairizuan.com/modern-filesystems-journaling-vs-copy-on-write-the-kernel-write-path-and-data-correctness/ Wed, 09 Sep 2026 00:00:00 +0000 https://www.hairizuan.com/modern-filesystems-journaling-vs-copy-on-write-the-kernel-write-path-and-data-correctness/ <p>When engineers discuss storage and file systems, the conversation often starts and stops with the classics: <code>ext4</code> on Linux, <code>NTFS</code> on Windows, and perhaps <code>XFS</code> for large database servers. For decades, the dominant answer to filesystem reliability was straightforward: <strong>journaling</strong>.</p>