Hammer2 might be more suitable to storing billions of files efficiently: it supports online and batched deduplication, snapshots, directory entry indexing, mult

Hammer2 might be more suitable to storing billions of files efficiently: it supports online and batched deduplication, snapshots, directory entry indexing, multiple mountable filesystem roots, mountable snapshots, a low memory footprint, compression, encryption, zero-detection, data and metadata checksumming, and synchronization to other filesystems or nodes.