Tag
journaling
- Jul 22, 2025 Torn Writes, Journal Checksums, and Detecting a Bad Commit Why a commit record that exists is not proof that its transaction is intact, how checksumming the log closes that hole, and what remains undetectable. filesystems
- Nov 7, 2024 Metadata-Only Journaling and the Three ext3 Data Modes What the data=journal, data=ordered, and data=writeback modes each guarantee about file contents after a crash, and why the ordered mode costs a dependency the other two avoid. filesystems
- Dec 16, 2023 Write-Ahead Journaling and the Three-Phase Commit Record How a journal turns many unordered block writes into one atomic transaction, why the commit block must be a single sector, and how replay stays idempotent. filesystems