Openfiler is a Linux-based network-attached storage and storage area network platform for small businesses, labs, and IT administrators. It provides file sharing through SMB and NFS plus block storage through iSCSI, but its development and security-update cadence are no longer current.
💡 Pick it for a maintained Openfiler replacement with ZFS, snapshots, replication, and broad NAS/SAN support.
TrueNAS is a powerful, flexible, and open storage platform.
Free and paid versions available
💡 Pick it for a lightweight, actively maintained Debian NAS with a simpler interface than TrueNAS.
OpenMediaVault is a Debian-based NAS operating system for home users, enthusiasts, and small offices. Its web interface manages common storage services, software...
Free and open source
💡 Pick it for flexible mixed-disk storage plus an approachable Docker and VM platform.
Unraid is a NAS operating system that allows you to build a storage system using various hard drives of different sizes and...
$59-$129 (depending on the number of storage devices)
💡 Pick it when you want Btrfs snapshots and replication with integrated container support.
Rockstor is a Linux-based NAS platform built around the Btrfs filesystem for home users, small businesses, and labs. It provides web management...
Free Community edition; subscriptions from $12/year
XigmaNAS Project
💡 Pick it for a lightweight FreeBSD-based NAS with ZFS and traditional iSCSI support.
XigmaNAS is a free, open-source NAS distribution based on FreeBSD for home users, labs, and small organizations. It offers ZFS, software RAID,...
Free and open source
💡 Pick it for hypervisor-focused, highly available shared storage instead of a general-purpose NAS.
StarWind Virtual SAN is software-defined shared storage for virtualized servers and hyperconverged infrastructure, aimed primarily at SMBs and midmarket IT teams. It...
Free edition available; paid plans N/A
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