Windows Server 2019 Alternatives

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

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

PackageX Receive digitizes package-receiving operations and delivers world-class package management solutions.

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

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

Secure, fast and economically scalable, Ubuntu helps you make the most of your infrastructure. Whether you want to deploy a cloud or a web farm, Ubuntu Server supports the most popular hardware and software.

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

File Sharing, OS & Utilities, and Security & Privacy

Enterprise Storage OS. An open source, high performance, block-level storage platform.

Being a Software-Defined Storage (SDS) solution, StarWind Virtual SAN (VSAN) eliminates any need for physical shared storage and delivers high performance.

NetApp HCI and SolidFire bring together the best of the public cloud and the private cloud to create a seamless user experience and to help you build a true hybrid multi cloud experience.

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

SvSAN is a virtual SAN for Hypervisors.

World’s most deployed storage with >1M deployments worldwide. Trusted by thousands of companies and organizations, including more than 40% of the Fortune 500.