Windows Storage Server 2012 R2 is Coming Soon—and Here Are My Top 10 New Features!

Hi Folks,

Scott here to tell you that Windows Storage Server 2012 R2 has been released to our storage partners alongside Windows Server 2012 R2! These partners are now busy preparing new storage solutions that can be deployed in minutes and don’t require a PhD to manage. We expect solutions to start appearing in the market soon after General Availability (GA) on October 18th.

The best part about Windows Storage Server solutions is that they:

  • are a fraction of the cost of a Fibre Channel SAN
  • run on industry standard hardware
  • don’t require specialized storage administrators to operate and maintain

Before we get into what’s in this new release, it’s worth taking a look at Microsoft's new high-level design for a cost-effective, resilient compute and storage architecture:


  • At the compute tier (top of diagram), we have a cluster of Hyper-V servers running various workloads within the VMs
  • The VMs in the compute tier use SMB 3.0 to store their VMs and access application data from the storage server cluster
  • The clustered storage servers are connected to a shared JBOD enclosure
  • By implementing multiple network adapters and switches, there are no single points of failure

This architecture delivers performance on par with native Fibre Channel SANs, while eliminating the need for expensive hardware RAID adapters, RAID systems, or HBAs. Hyper-V VMs stored on SMB shares can grow and shrink, and live VMs can be migrated from one server to another without any downtime. The storage cluster can automatically rebalance shares and clients to optimize the utilization of storage and network resources. Best of all, this architecture is easy to manage; everybody on the IT team knows how to create a network share, while setting up and administering a Fibre Channel SAN can require a lot of specialized training.

My Own Personal Top-10 List

A year ago, when Windows Storage Server 2012 released, I blogged about some of its top features, including continuously-available file and block storage, Data Deduplication, Storage Spaces, Thin Provisioning, SMB Direct, SMB Multichannel, and more. In fact, there were so many great improvements that it was exhausting to cover them all in one presentation. Now many of the improvements in Windows Storage Server 2012 R2 are creating quite a buzz, which is why I’ve assembled my very own “Top 10” list to help you come up to speed.

Let’s start with the improvements we made to storage protocols:

  1. An improved iSCSI Target supports VHDx (VHD 2.0) for capacities of up to 64 TB. The iSCSI Target also now supports SMI-S, enabling end-to-end provisioning using System Center Virtual Machine Manager.

  2. Improvements to the Server Message Block (SMB) protocol include better SMB Direct performance, automatic rebalancing for Cluster Shared Volumes (CSV) on scale-out file servers, shared VHDx files, Hyper-V Live Migration over SMB, SMB bandwidth management, detailed event messages, and more.

    We made data access and replication even more powerful and useful:

  3. Work Folders, a new feature that facilitates the BYOD (bring-your-own-device) trend by enabling users to access work files from their personal computers and devices. Organizations retain centralized control over that data and can specify device policies such as encryption and lock screen password.

  4. Enhancements to DFS Replication (DFS-R) , including huge increases in scalability, ability to do database cloning and corruption recovery, Windows PowerShell modules for DFS-R, a new WMI provider, faster replication on high bandwidth connections, and recovery tools for conflicts.

    We also made it faster and easier to implement continuous availability:

  5. Improved Failover Clustering, including improvements in the areas of virtual machine availability, Cluster Shared Volumes (CSV), dynamic cluster quorums, cluster node health detection, deployment, updating and monitoring.

  6. Enhanced support for Hyper-V , including shared virtual hard disks (VHDs), resizing of VHDs while a VM is running, storage quality of service (QoS), improved performance for live migrations, cross-version live migrations, and several more new or improved capabilities.

    We made it painless to cost-effectively scale your storage capacity:

  7. New Storage Spaces functionality , which includes storage tiering, SSD write-back cache, parity storage spaces on failover clusters, dual parity storage spaces, and faster recovery when failures occur.

  8. Improved Data Deduplication , including support for Cluster Shared Volumes and deduplication of live Virtual Desktop Infrastructure (VDI) VMs that reside on a file server connected via SMB.

    Last but not least, we made improvements to ease deployment and management:

  9. An updated OEM Appliance OOBE (out-of-the-box experience) addssupport for four-node cluster deployments and a wizard for creating a domain controller within a Hyper-V VM that can be used to deploy a turnkey cluster-in-a-box.

  10. An improved Storage Management API enables 10x faster enumerations, adds cluster-awareness and remote management for Storage Spaces new features.

While each of the above features is impressive on its own, it’s how they all work together that makes Windows Storage Server 2012 R2 so compelling—and a great alternative to expensive Fibre Channel SANs. Fast and easy deployment? Check. All the storage functionality you could need, without any additional licenses? Check. Comprehensive storage management via a single pane of glass? Check. Come to think of it, the only thing missing is the half-million-dollar price tag!

Over the coming weeks, in a series of new blog posts, I’ll be diving deeper into the features and protocols. Each article will cover a few topics, including a detailed look at what’s new/improved, why each feature is useful, and a hand-picked list of reference links. I’ll also be assembling and posting a list of Frequently Asked Questions (FAQs), so feel free to send me a note if you have a question of your own.

Two Editions for Windows Storage Server 2012 R2

Since we’re talking about specific features in this post, it’s worth a quick review that:

  • Windows Storage Server 2012 R2 comes in two editions: Standard and Workgroup.
  • The key differences between the two Windows Storage Server 2012 R2 editions are listed here. Most of the features that are in Windows Server 2012 R2 Standard are also included in Windows Storage Server 2012 R2, with certain exceptions listed in the below table.
  • Windows Storage Server is only sold as an embedded storage solution by Microsoft’s partners and each solution may have different hardware or deployment models and integrators may include a wide range of features that can extend the storage functionality of the solution.
  • Licenses can be stacked by the manufacturer, for instance, to create a 4-socket system with 4 virtual machine licenses, the OEM would stack two Standard licenses on the solution.


Well, that’s all for now. Cheers, and stay tuned to this blog for updates—it’s going to be an interesting few months!

Scott M. Johnson
Senior Program Manager
Windows Storage Server