Ceph - Ceph is a distributed object store and file system designed to provide excellent performance...
Dell EMC UnityVSA - dell-emc-unityvsa-overview-deployment
GlusterFS - GlusterFS is a scale-out network-attached storage file system.
PetaSAN - PetaSAN is an open source Scale-Out SAN solution offering massive scalability and performance.
Minio - Minio is an open-source minimal cloud storage server.
StorPool - StorPool is designed from the ground up to provide cloud builders, shared hosting providers and MSPs with the most resource efficient storage software on the market.