Ceph - Ceph is a distributed object store and file system designed to provide excellent performance...
Veeam Backup - Backup and restore VMware and Hyper-V virtual machines with Veeam Backup Free Edition. Unlimited hosts and VMs. Free forever.
GlusterFS - GlusterFS is a scale-out network-attached storage file system.
Rubrik - Rubrik delivers instant application availability for recovery, search, cloud, and development.
Minio - Minio is an open-source minimal cloud storage server.
Zerto - Virtual replication & recovery solution