EXT4's Data=Journal Mode to Be Removed in 2028, Sparking Data Integrity vs. Performance Debate
The Linux kernel is set to remove the EXT4 file-system's 'data=journal' mode in 2028, as noted in the kernel changelog. This mode, which prioritizes data integrity by logging all changes, will be deprecated due to its performance overhead and disabled features like delayed allocation.
Users are split between those who value data safety and those who prioritize performance. SocialistVibes01 argues that the mode is essential for data integrity, despite its drawbacks, while time2lose warns that the change will force users to reconsider alternative modes for performance or compatibility. The debate highlights a growing tension between reliability and efficiency in file-system design.
The community consensus leans toward the deprecation of 'data=journal' mode, with concerns over performance and compatibility. However, the divide remains sharp between those who see it as a necessary evolution and those who fear it compromises data safety. The key issue is whether the trade-off between integrity and speed is worth making in the future of Linux storage.
Key Points
#1EXT4's 'data=journal' mode is being deprecated and will be removed in 2028
The change is documented in the Linux kernel changelog and will affect how data integrity is handled at the filesystem level.
#2Data integrity is seen as a critical feature, but at the cost of performance
SocialistVibes01 argues that the mode is great for data safety but has performance drawbacks, and it's being deprecated in Linux 7.3.
#3Users are advised to review configurations for alternative modes
time2lose highlights that the change affects data integrity handling and recommends reviewing configurations for future kernel versions.
#4Performance hits and disabled features are major concerns
cm0002 points out that the mode will result in significant performance hits and disabled features like delayed allocation.
Source Discussions (4)
This report was synthesized from the following Lemmy discussions, ranked by community score.