Storage Spaces Direct | Introduction

What is Storage Spaces Direct?

Storage Spaces Direct (S2D) is a new storage feature in Windows Server 2016 which allows you to leverage the locally attached disk drives of the servers in your datacentre to build highly available, highly scalable software-defined storage solutions. S2D helps you save your investments on expensive SAN or NAS solutions by allowing you to use your existing NVMe, SSD or SAS drives combined together to provide high performing and simple storage solutions for your datacentre workloads.

S2D Deployment Choices

There are two deployment options available with S2D.


In a Converged or disaggreagted S2D architecture, Scale-out File Server/s (SoFS) built on top of S2D  provides shared storage on  SMB3 file shares. Like your traditional NAS systems this separates the storage layer from compute and this option is ideal for large scale enterprise deployments such as Hyper-V VMs hosted by a service provider. 

(Image Courtesy) Microsoft TechNet

Hyper Converged

With Hyper Converged S2D deployments, both compute and storage layers reside in same server/s and this allows to further reduce the hardware cost and ideal for SMEs. 

(Image Courtesy) Microsoft TechNet

S2D is the successor of Storage Spaces introduced in Windows Server 2012 and it is the underlying storage system for Microsoft Azure & Azure Stack. In my next post I will explain about the S2D architecture and key components of an S2D solution in much detail.

Following video explains the core concepts of S2D and it’s  internals and use cases.