IBM Flex System NAS solutions with Windows Storage Server 2012 provide highly available and scalable network attached storage. The solutions include IBM Flex System servers, storage, and networking combined with Windows Storage Server 2012. This allows for deploying either a unified storage server with local storage or a highly available unified NAS gateway with shared storage. The solutions deliver file sharing, block storage, and infrastructure services to heterogeneous environments while improving performance, availability, manageability and reducing costs.