Storage Spaces Direct with Cavium FastLinQ® 41000

Hello, Claus here again. I am very excited about how the RDMA networking landscape is evolving. We took RDMA mainstream in Windows Server 2012 when we introduced SMB Direct and even more so in Windows Server 2016 where Storage Spaces Direct is leveraging SMB Direct for east-west traffic. More partners than ever offer RDMA enabled… Read more

Understanding SSD endurance: drive writes per day (DWPD), terabytes written (TBW), and the minimum recommended for Storage Spaces Direct

Hi! I’m Cosmos. Follow me on Twitter @cosmosdarwin. Background Storage Spaces Direct in Windows Server 2016 features a built-in, persistent, read and write cache to maximize storage performance. You can read all about it at Understanding the cache in Storage Spaces Direct. In all-flash deployments, NVMe drives typically cache for SATA/SAS SSDs; in hybrid deployments,… Read more

Storage Spaces Direct on Intel® Xeon® Scalable Processors

Hello, Claus here again. As you have probably noticed by now, we have a great ongoing collaboration with Intel. In this blog post we are going to look at Windows Server 2016 Storage Spaces Direct on Intel’s latest and greatest hardware, which includes a new processor family, Intel® Xeon® Scalable Processors, an iWARP RDMA network… Read more

Storage Spaces Direct throughput with iWARP

Hello, Claus here again. It has been a while since I last posted here and a few things have changed since last time. Windows Server has been moved into the Windows and Devices Group, we have moved to a new building with a better café, but a worse view 😊. On a personal note, I… Read more

Deep Dive: The Storage Pool in Storage Spaces Direct

Hi! I’m Cosmos. Follow me on Twitter @cosmosdarwin. Review The storage pool is the collection of physical drives which form the basis of your software-defined storage. Those familiar with Storage Spaces in Windows Server 2012 or 2012R2 will remember that pools took some managing – you had to create and configure them, and then manage… Read more

Don’t do it: consumer-grade solid-state drives (SSD) in Storage Spaces Direct

// This post was written by Dan Lovinger, Principal Software Engineer. Howdy, In the weeks since the release of Windows Server 2016, the amount of interest we’ve seen in Storage Spaces Direct has been nothing short of spectacular. This interest has translated to many potential customers looking to evaluate Storage Spaces Direct. Windows Server has… Read more

Squeezing hyper-convergence into the overhead bin, for barely $1,000/server: the story of Project Kepler-47

The Challenge In the Windows Server team, we tend to focus on going big. Our enterprise customers and service providers are increasingly relying on Windows as the foundation of their software-defined datacenters, and needless to say, our hyperscale public cloud Azure does too. Recent big announcements like support for 24 TB of memory per server… Read more

Volume resiliency and efficiency in Storage Spaces Direct

Hello, Claus here again. One of the most important aspects when creating a volume is to choose the resiliency settings. The purpose of resiliency is to provide resiliency in case of failures, such as failed drive or a server failure. It also enables data availability when performing maintenance, such as server hardware replacement or operating… Read more

Deep Dive: Volumes in Storage Spaces Direct

Hi! I’m Cosmos. You can follow me on Twitter @cosmosdarwin. Note: This blog was updated on January 6th 2017 to align more closely to official documention. Quick Review In Storage Spaces Direct, volumes can derive their fault tolerance from mirroring, parity encoding, or mirror-accelerated parity. Briefly… Mirroring is similar to distributed, software-defined RAID-1. It provides… Read more

Storage IOPS update with Storage Spaces Direct

Hello, Claus here again. I played one of my best rounds of golf in a while at the beautiful TPC Snoqualmie Ridge yesterday. While golf is about how low can you go, I want to give an update on how high can you go with Storage Spaces Direct. Once again, Dan and I used a… Read more