OpenZFS has announced the release of version 2.2.0, an open-source implementation of the ZFS file system and volume manager. This release comes with several new features and performance improvements.

One notable new feature is block cloning, which allows for the creation of shallow copies of files or parts of files. This facility is used to implement “reflinks” or “file-level copy-on-write”. Additionally, Linux container support has been added, including support for Linux-specific container interfaces such as renameat(2), overlayfs, idmapped mounts in a user namespace, and namespace delegation support for containers.

Another important addition is the scrub error log, which allows zpool status to report all affected filesystems, snapshots, and clones when a shared corrupt block is found. The zpool scrub -e command can be used to perform a fast, targeted repair of known damaged blocks.

In terms of performance, this release introduces fully adaptive ARC, which allows the ARC to better adjust to highly dynamic workloads and minimizes the need for manual workload-dependent tuning. It also includes optimized SHA2 and Edon-R checksum implementations, as well as improvements in prefetching and general optimization.

For those interested in the technical details, the complete change log and module options are available in the OpenZFS documentation.

Overall, the release of version zfs-2.2.0 brings exciting new features and performance improvements to the OpenZFS/ZFS on Linux community. It is recommended for users who are looking to enhance their server, Linux, DevOps, and home lab environments.

For more information, please refer to the OpenZFS documentation for Linux and FreeBSD, and the complete change log.

OpenZFS has launched release candidate 5 (rc5) of version v2.2.0.

The release includes several changes and updates, including improvements to ZIL (ZFS Intent Log), rpm fixes, enhancements to zfsconcepts, and updates to ARC (Adaptive Replacement Cache) headers. Additionally, there are compatibility updates for Linux and FreeBSD platforms.

Here are the supported platforms for this release:

• Linux: compatible with 3.10 - 6.5 kernels
• FreeBSD: compatible with releases starting from 12.2-RELEASE

The release candidate includes numerous bug fixes and enhancements to improve stability and performance. It is recommended for users who are interested in testing the latest features and providing feedback to the OpenZFS community.

To learn more and download the release candidate, visit the official OpenZFS GitHub page at https://github.com/openzfs/zfs/releases/tag/zfs-2.2.0-rc5.

The OpenZFS project has released version 2.1.13, of the open-source implementation of the ZFS file system and volume manager. ZFS supports features like data compression, data deduplication, copy-on-write clones, snapshots, and RAID-Z. It also supports the creation of virtual devices.

The new version is compatible with Linux kernels 3.10 to 6.5 and FreeBSD releases starting from 12.2-RELEASE. The release includes various changes and fixes, including improvements for Linux compatibility and bug fixes for issues related to automounted snapshots, L2ARC write size calculation, and memory leaks. The update also includes enhancements for zed, zfs-dkms rpm, and bash completion. Overall, the release brings improved stability and compatibility for users of OpenZFS/ZFS on Linux.

ZFS is a great choice for home servers and use on DIY network attached storage units, and is the file system that TrueNAS uses. It can also run perfectly well on the Raspberry Pi.

See the full release notes here.

PuzzleFS has been quietly making progress as a new file-system designed specifically for containers, writes Phoronix. Developed by Cisco engineers, PuzzleFS aims to address the limitations of the OCI (Open Container Initiative) and is written in the Rust programming language.

The kernel driver for PuzzleFS, also written in Rust, is currently being developed outside the mainline Linux kernel. This is due to the lack of necessary Rust abstractions in the mainline kernel. PuzzleFS offers several design goals, including immutability, reduced duplication, reproducible image builds, direct mounting support, data integrity, and memory safety guarantees. The file-system also includes optimal Zstd compression support.

Source: Phoronix.