If you’re considering deploying an SDS solution and looking for simplicity, flexibility, and savings, ESG Lab suggests considering OSNEXUS.
— Enterprise Strategy Group

QuantaStor is a unified Software Defined Storage (SDS) platform designed to scale up and out to make storage management easy while reducing overall enterprise storage costs. QuantaStor SDS, deployed in datacenters worldwide, addresses a broad set of storage use cases including server virtualization, big data, cloud computing, and high performance applications through scale-out physical and virtual storage appliances (VSAs). With support for all major SAN/NAS protocols including iSCSI/FC and NFS/CIFS/SMB and a high availability scale up and out file system with fault-tolerant technologies, QuantaStor SDS delivers a complete array of enterprise features and capabilities for file, block and object storage that can be installed on any 64-bit Intel or AMD server or virtual machine.

Grid-scale Technology
QuantaStor’s grid technology enables the scaling of storage up and out to 64 physical or virtual storage appliances and 100 petabytes of storage locally or dispersed across geographies. Easily provision storage from any appliance in the grid from a single web-based management interface.

Flexible, Modular Architecture
The layered architecture of QuantaStor SDS provides solution engineers with unprecedented flexibility and application design options that maximizes workload performance and fault-tolerance for a wide range of storage workloads. 

End-to-End Security
QuantaStor SDS includes end-to-end security coverage enabling multi-layer data protection “on the wire” and “at rest” for enterprise and cloud storage deployments. Combining protocol-level encryption with SMB, IPsec and HTTPS across any storage grid, hardware and software disk drive encryption with Intel AES-NI technology and advanced user security featuring role-based access controls, QuantaStor SDS end-to-end security is ideal for industry applications ranging from energy, healthcare, financial services and education to government. 

Simplified Management
The intuitive QuantaStor SDS management interface and configuation workflow manager eliminates many complicated steps commonly associated with legacy storage applications to provide IT generalists powerful storage solution configuration options. 

Further Reading:
ESG Lab First Look: Simplified Scale-out SDS for Block, File, and Object
QuantaStor SDS v4 Overview