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Reflinks are basically CoW hardlinks — supported on Linux by btrfs, XFS, and I've seen some effort to bring it to ZFS. DragonFlyBSD's HAMMER filesystem support

by Freaky 3y ago

Reflinks are basically CoW hardlinks — supported on Linux by btrfs, XFS, and I've seen some effort to bring it to ZFS. DragonFlyBSD's HAMMER filesystem supports on-demand/scheduled dedup using the hammer(8) command, with configurable memory and runtime limits.