unRAID Server Alternatives

OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.

Open Source

TrueNAS Core (formerly FreeNAS) is a storage operating system strong and robust enough to meet the needs of enterprise level businesses.

Serverspace offers automated, simple, and affordable cloud infrastructure to everyone. Get started building your cool digital stuff right now.

Visit website Open Source paid $4.95 / Monthly (1 GB RAM, 1 vCPU, 25 GB SSD, 50 Mbps Bandwidth)

A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures.

State of the art, file based drive pooling software.

mergerfs is a union filesystem geared towards simplifing storage and management of files across...

Simplicity. Flexibility. Scalability. Modularity. Unraid empowers you to build the system you’ve always wanted using your preferred hardware, software, and operating systems.

Openfiler is the name of the open-source storage management system that is best known for its unified storage system.

Rockstor is a free and open source NAS (Network Attached Storage) operating system.

A very good alternative for Windows Server, for free

Linux directory, domain, mail, gateway and infrastructure server for SMBs.

Greyhole is an application that uses Samba to create a storage pool of all your available hard drives, and allows you to create redundant copies of the files you store, in order to prevent data loss when part of your hardware fails.

Open Source

PetaSAN is an open source Scale-Out SAN solution offering massive scalability and performance.

Amahi is a media, home and app server software known for its easy-to-use user interface. Amahi has the best media, backup and web apps for small networks.