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Western Digital Has Been Developing A New Linux File-System: Zonefs

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Development
Linux
Hardware

Western Digital has been contributing a lot more to the Linux kernel in recent years from RISC-V architecture bits to storage enhancements. The most recent code they have been working on in recent weeks is a brand new Linux file-system.

But before getting too bent out of shape over yet-another-Linux-filesystem, the new Western Digital creation isn't intended to be a general purpose file-system for competing with the likes of EXT4, Btrfs, XFS, and ZFS On Linux... This new file-system, Zonefs, is for specialty use-cases and running on zoned block devices. Zonefs exposes each zone of a zoned block device as a file, compared to traditional file-systems or how zoned block device support is exposed through the likes of F2FS and friends on host-managed/host-aware SMR (Shingled Magnetic Recording) disk drives.

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Western Digital develops new Linux file system “Zonefs”

  • Western Digital develops new Linux file system “Zonefs”

    In recent years, from the RISC-V architecture to storage enhancements, Western Digital has made a greater contribution to the Linux kernel. The latest code it has been working on in recent weeks is the new Linux file system.

    However, the new Western Digital product is not intended to be a universal file system that competes with EXT4, Btrfs, XFS, and ZFS on Linux. This new file system, Zonefs, is suitable for special use cases and runs on block devices.

    Western Digital’s Damien Le Moal described Zonefs as saying, “zonefs is not a POSIX-compatible file system. Its purpose is to simplify the use of block device support in applications by replacing raw block device file access with APIs based on more feature-rich files. Implementation, avoid relying on direct block device file ioctl.

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