OpenMediaVault!

FreeNAS is a free NAS (Network-Attached Storage) server, supporting: CIFS (samba), FTP, NFS, AFP, RSYNC, iSCSI protocols, S.M.A.R.T., local user authentication, Software RAID (0,1,5) with a Full WEB configuration interface. FreeNAS takes less than 32MB once installed on Compact Flash, hard drive or USB key.The minimal FreeBSD distribution, Web interface, PHP scripts and documentation are based on M0n0wall.

NAS4Free is an embedded Open Source Storage NAS (Network-Attached Storage) distribution based on FreeBSD. This project is a continuation of FreeNAS 7 series project.

Rockstor is a free and open source NAS (Network Attached Storage) operating system. It’s a software solution and can be installed on commodity hardware or a hypervisor satisfying minimum system requirements.

Are you one of many home users who store a lot of personal data, accumulated over the years, and want to store those in a safe and cool way? Then consider the advantages of using ZFSguru:

Unify & organize your data. Protect & recover from disk failures! Whether you are choosing Transparent RAID™ or RAID over File System, FlexRAID products allow you to transform a common PC with an existing operating system into a protected Network Attached Storage (NAS) appliance or a Hybrid Storage System (HSS), which is accessed both locally and remotely. All FlexRAID products are non-intrusive in that you can uninstall the software at any time and regain complete control of your disks and data without ever needing to do a data migration. »

What is EON?Embedded Operating system/Networking is a small operating system, built on Solaris, designed to store any amount of digital data on Intel/AMD (x86) hardware, using the amazing, enterprise class Zettabyte File System.

Enterprise Storage OS® is a quasi Linux distribution based on the excellent SCST project; its purpose is to provide SCSI targets via a compatible SAN (Fibre Channel, InfiniBand, iSCSI, FCoE). In a nutshell, ESOS® can easily turn a server with the appropriate hardware into a disk array that sits on your enterprise Storage Area Network (SAN) providing sharable block-level storage volumes. Typical uses for an ESOS® "storage server" include VMFS datastores on VMware ESX/ESXi, Windows NTFS volumes, Linux disks, etc. »

Open-E Data Storage Software V7 SOHO (Small Office Home Office) is a free version of Open-E DSS V7, previously known as Open-E DSS V7 Lite. With SOHO, you can take advantage of basic functionalities of our fully featured NAS / SAN software platform

A napp-it is a high-quality block- and filestorage on common and favourable server hardware from ex. DataOn, Dell, HP or SuperMicro paired with a solid server OS (preferable Omnios/ OI/ Solaris but now with ZFS and job/ snap management on Linux) with an easy online installer and webbased GUI management with additional Pro extensions and server replication.