OSNEXUS QuantaStor vs Rockstor

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.

Rockstor is an open-source network attached storage and private cloud storage system based on Linux and BTRFS, managed through a web interface. It supports storage pools, user management, on-demand and scheduled copy-on-write snapshots, and online capacity scaling. File sharing is available over NFS, Samba, SFTP, and AFP for Linux, Mac, Windows, and mobile devices. Listed BTRFS features include checksums, compression, and bitrot protection; Rockstor also supports asynchronous replication. Backup options include Rsync, Apple Time Machine, and Windows Backup. A customizable resource dashboard and SNMP provide monitoring, while Docker-based Rock-ons add apps for VPN, cloud storage, syncing, and media streaming. Installer profiles include openSUSE Leap 16.0, Tumbleweed, and Slowroll targets; Tumbleweed and Slowroll are described as experimental during the 5.5 testing phase. The Stable Updates subscription is requested but not required. The Raspberry Pi 5 profile is experimental, and setup cannot proceed on its jeOS base image through zypper because that image uses ext4 rather than BTRFS. Support is community based through the Rockstor forum.