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

Streamlined Migration of FRS to DFSR SYSVOL

Hi folks, Ned here again. When telling people about the coming removal of FRS from Windows Server, the main response is usually: “Sure, I have occasional problems with FRS and know that I should upgrade to DFSR, but who has the time for a huge migration? That guide is very intimidating!” Update June 20, 2017:… Read more

The End is Nigh (for FRS) – updated for WS2016

Hi folks, Ned here again. At TechEd, I officially announced the end of the File Replication Service. For those that missed the event, I repeat: We are removing FRS from Windows Server Update June 20, 2017: It is done; Windows Server 2016 RS1 is the last version that will allow FRS – RS3 no longer… Read more

Deploying Data Deduplication for VDI storage in Windows Server 2012 R2

This post is a part of the nine-part “What’s New in Windows Server & System Center 2012 R2” series that is featured on Brad Anderson’s In the Cloud blog.  Today’s blog post covers Data Deduplication and how it applies to the larger topic of “Transform the Datacenter.”  To read that post and see the other technologies discussed,… Read more

Extending Data Deduplication to new workloads in Windows Server 2012 R2

This post is a part of the nine-part “What’s New in Windows Server & System Center 2012 R2” series that is featured on Brad Anderson’s In the Cloud blog.  Today’s blog post covers Data Deduplication and how it applies to the larger topic of “Transform the Datacenter.”  To read that post and see the other technologies discussed,… Read more

Windows Server 2012 Beta with SMB 3.0 – Demo at Interop shows SMB Direct at 5.8 Gbytes/sec over Mellanox ConnectX-3 network adapters

The Interop conference is happening this week in Las Vegas (see http://www.interop.com/lasvegas) and Mellanox is showcasing their high-speed ConnectX-3 network adapters during the event. They are showing an interesting setup with Windows Server 2012 Beta and SMB 3.0 that shows amazing remote file performance using SMB Direct (SMB over RDMA). The short story? 5.8 Gbytes… Read more

SMB 3 Security Enhancements in Windows Server 2012

Everything here also applies to Windows 8. These features were first available in the Windows Server “8” Beta & Windows 8 Consumer Preview releases. See this document for protocol level details of these features. 1       Encryption SMB 3 in Windows Server 2012 adds the capability to make data transfers secure by encrypting data in-flight, to… Read more

File Server team sessions at TechEd 2012 North America

If you’re planning to attend the TechEd 2012 North America event in June, here are the scheduled sessions with speakers from the File Server team: Code Title Speaker(s) Day Time Track Level WSV328 The Path to Continuous Availability with Windows Server 2012 Gene Chellis, Jim Pinkerton Mon 4:45 PM Windows Server 300 SIA207 Windows Server… Read more

Analyzing Storage Performance using the Windows Performance Analysis ToolKit (WPT)

Robert Smith (Platforms Field Engineer) has recently posted a new blog that cover one important area of Windows performance that few people understand well. In his blog post he talks about how to use Windows Performance Toolkit (WPT) in general and the XPerf tool in particular. Xperf.exe is the command line tool used to start, stop,… Read more