OpenNAS vs OSNEXUS QuantaStor

OpenNAS is a free NAS operating system for managing files, storage, containers, and virtual machines through a browser-based desktop on your own hardware. It is based on Alpine Linux, targets x86_64, and is licensed GPL-3.0-or-later. File Station handles uploads and downloads, previews for common media and document formats, ZIP operations, recycle-bin restoration, and expiring password-protected public links. Storage tools show S.M.A.R.T. health, RAID status, and per-volume usage, and support disk initialization and configurable storage for virtual machines and containers. Container Manager handles Docker containers and images, logs, resource statistics, and docker-compose stacks. KVM/QEMU virtual machines support ISO booting, qcow2 disks, and an in-browser noVNC console. Package Center offers one-click self-hosted services such as Jellyfin, Nextcloud, Pi-hole, Vaultwarden, Gitea, Home Assistant, Portainer, and Immich. File sharing supports SMB/CIFS, NFS, and AFP, with Time Machine targets. The Free plan is free. The current installer is version 0.9.0-beta.1 for x86_64 and supports UEFI and BIOS boot; it requires compatible 64-bit x86_64 hardware, at least 2 GB RAM, and an 8 GB or larger USB stick.

OSNEXUS QuantaStor manages file, block and object storage in a software-defined platform. Built on Ceph and OpenZFS, it can scale up or out while managing storage across one grid. Administrators can configure it through a web interface designed for IT generalists, or manage and automate Storage Grid servers with CLI tools and REST APIs. QuantaStor is available as ISO installation media for bare metal or virtual machines, and as a VMware OVA appliance. Its Cloud Integration SDK supports automated provisioning, storage-cloud management and auditing through RESTful APIs. OSNEXUS describes data protection in transit and at rest. For Ceph users, listed security features include AES-256 encryption, S3 Object Lock, MFA and RBAC; the Ceph page also lists alerts through email, Slack and SNMP, plus hardware monitoring. The free Community Edition is limited to 80TB raw capacity and four servers per grid, for non-commercial, educational and testing use. The Trial Edition is free for 45 days, with 256TB raw capacity and Enterprise Edition features unlocked.