New in #OpenZFS v2.2:

#OpenZFS developer summit 2023 is less than a month away and the presentations have been announced: openzfs.org/wiki/OpenZFS_Dev… As always this account will be live-tweeting highlights from the event.

You can't do post-processing with block cloning. See youtu.be/hYBgoaQC-vo for more context on block cloning implementation and use cases

OpenZFS v2.2 RC packed with highly anticipated features: * Perf boosting ARC eviction * cp --reflink support * Data error management improvements: - see all affected datasets in zpool status - scrub only bad blocks - heal corruption using recv * docker overlayfs support

This work was presented at the 2022 #OpenZFS dev summit: slides: drive.google.com/file/d/1eyv… video: youtube.com/watch?v=qsE3R0Ys…

Space savings #OpenZFS block cloning has landed: github.com/openzfs/zfs/commi… ▸ on-demand deduplication ▸ separate table holds refcounts for cloned blocks ▸ accessible through ▸▸ copy_file_range(2) for file systems ▸▸ SCSI EXTENDED COPY for ZVOLs

#OpenZFS in userland (uZFS) is being worked on by @IOMesh_hq Check out the potential use cases slide 👍

zvol performance has had some recent changes merged in that may substantially increase zvol I/O perf

Some promising features being worked on by @pjdawidek Block cloning may be the future for some dedup use cases

AWS FSx for OpenZFS quoting some impressive perf numbers