TechEd 2014: File Server Networking for a Private Cloud Storage Infrastructure

Just a reminder that I will be delivering a session at TechEd 2014 in Houston, Texas. Here are the details:   Code   DCIM-B337 Title   File Server Networking for a Private Cloud Storage Infrastructure in Windows Server 2012 R2 Date   Tuesday, May 13 3:15 PM - 4:30 PM Track   Datacenter and Infrastructure … Continue reading TechEd 2014: File Server Networking for a Private Cloud Storage Infrastructure

SMB Direct and RDMA performance demo from TechEd (includes summary, PowerShell scripts and links)

IMPORTANT NOTE:SQLIO has been deprecated, as shown at http://blogs.msdn.com/b/sql_server_team/archive/2015/12/11/sqlio-disk-subsystem-benchmark-tool-is-being-retired.aspx DiskSpd is the suitable replacement for SQLIO. You can find details on that at http://blogs.technet.com/b/josebda/archive/2014/10/13/diskspd-powershell-and-storage-performance-measuring-iops-throughput-and-latency-for-both-local-disks-and-smb-file-shares.aspx ---------------- Overview   My last TechEd demo showed some interesting performance data for SMB3 over RDMA (SMB Direct), including the latest small IO improvements in Windows Server 2012 R2. Since I … Continue reading SMB Direct and RDMA performance demo from TechEd (includes summary, PowerShell scripts and links)

Troubleshooting File Server Networking Issues in Windows Server 2012 R2

In this blog post, I’m sharing a few troubleshooting tips related to File Server Networking in Windows Server 2012 R2. For each one, I first describe the issue that is commonly reported, followed by a quick explanation of the root cause of the issue and finally a way to solve it. Let me know if … Continue reading Troubleshooting File Server Networking Issues in Windows Server 2012 R2

Storage Developer Conference – SDC 2013 slides now publicly available. Here are the links to Microsoft slides…

The Storage Networking Industry Association (SNIA) hosted the 10th Storage Developer Conference (SDC) in the Hyatt Regency in beautiful Santa Clara, CA (Silicon Valley) on the week of September 16th 2013. This week, the presentation slides were made publicly available. You can find them all at http://snia.org/events/storage-developer2013/presentations13 For those focused on Microsoft technologies, here are some … Continue reading Storage Developer Conference – SDC 2013 slides now publicly available. Here are the links to Microsoft slides…

Selecting the number of nodes for your Scale-Out File Server Cluster

I recently got a stream of e-mails and questions about the maximum number of cluster nodes you can have in a Scale-Out File Server cluster. For the record, we test and support up to 8 nodes per file server cluster. This is the case for both Windows Server 2012 (which introduced the Scale-Out File Server … Continue reading Selecting the number of nodes for your Scale-Out File Server Cluster

Automatic SMB Scale-Out Rebalancing in Windows Server 2012 R2

Introduction   This blog post focus on the new SMB Scale-Out Rebalancing introduced in Windows Server 2012 R2. If you haven’t seen it yet, it delivers a new way of balancing file clients accessing a Scale-Out File Server. In Windows Server 2012, each client would be randomly directed via DNS Round Robin to a node … Continue reading Automatic SMB Scale-Out Rebalancing in Windows Server 2012 R2

Networking configurations for Hyper-V over SMB in Windows Server 2012 and Windows Server 2012 R2

One of the questions regarding Hyper-V over SMB that I get the most relates to how the network should be configured. Networking is key to several aspects of the scenario, including performance, availability and scalability. The main challenge is to provide a fault-tolerant and high-performance network for the two clusters typically involved: the Hyper-V cluster … Continue reading Networking configurations for Hyper-V over SMB in Windows Server 2012 and Windows Server 2012 R2

Windows Server 2012 R2: Which version of the SMB protocol (SMB 1.0, SMB 2.0, SMB 2.1, SMB 3.0 or SMB 3.02) are you using?

Note: This blog post is a Windows Server 2012 R2 update on a previous version focused on Windows Server 2012.   1. Introduction With the release of Windows 8.1 and Windows Server 2012 R2, I am frequently asked about how older versions of Windows will behave when connecting to or from these new versions. Upgrading … Continue reading Windows Server 2012 R2: Which version of the SMB protocol (SMB 1.0, SMB 2.0, SMB 2.1, SMB 3.0 or SMB 3.02) are you using?

Raw notes from the Storage Developers Conference (SDC 2013)

This blog post is a compilation of my raw notes from SNIA’s SDC 2013 (Storage Developers Conference).Notes and disclaimers: These notes were typed during the talks and they may include typos and my own misinterpretations. Text in the bullets under each talk are quotes from the speaker or text from the speaker slides, not my personal … Continue reading Raw notes from the Storage Developers Conference (SDC 2013)

What’s new in SMB PowerShell in Windows Server 2012 R2

Windows Server 2012 R2 introduced a new version of SMB. Technically it’s SMB 3.02, but we continue to call it just SMB3. The main changes are described at http://technet.microsoft.com/en-us/library/hh831474.aspx. With this new release, we made a few changes in SMB PowerShell to support the new scenarios and features. This includes a few new cmdlets and … Continue reading What’s new in SMB PowerShell in Windows Server 2012 R2