vNAS is described as 'Compuverde is built to scale and it scales linearly. Each node consists of the same setup, and therefore Compuverde is completely scaleable with no single point of failure'. There are four alternatives to vNAS for a variety of platforms, including Linux, Microsoft Hyper-V Server, Red Hat, Self-Hosted solutions and SUSE Linux Enterprise. The best alternative is TrueNAS, which is both free and Open Source. Other great apps like vNAS are StorPool (Paid), ReadyNAS (Paid) and Open-E Data Storage Software SOHO (Freemium).
TrueNAS (formerly FreeNAS) is an operating system that can be installed on virtually any hardware platform to share data over a network. TrueNAS is the simplest way to create a centralized and easily accessible place for your data.
StorPool is an intelligent software-defined storage solution that allows service providers, enterprises and other Cloud builders to run data storage on standard x86 servers, instead of on expensive and inefficient storage arrays (SANs).
ReadyNAS OS ReadyNAS OS is based from Linux and is exclusive for the ReadyNAS products and can be controlled by web address (example 192.168.0.20) and has many features like app support (Plex, PHP, etc) ReadyNAS Desktop Series
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