What are some alternatives?
When comparing OpenMediaVault and SnapRAID, you can also consider the following products
FreeNAS - FreeNAS is a storage operating system strong and robust enough to meet the needs of enterprise level businesses.
Rockstor - Rockstor is a free and open source NAS (Network Attached Storage) operating system.
unRAID Server - A scalable, consumer-oriented, server operating system.
Amahi Home Server - 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.
NAS4Free - NAS4Free is the easiest and quickest way to install an Open Source free NAS server. From home NAS to enterprise network storage, NAS4Free is trusted by thousands of installations every day.
Zentyal - Linux directory, domain, mail, gateway and infrastructure server for SMBs.