Cluster Networks in Windows Failover Clustering

Welcome to the Ask the Core Team blog. My name is Eriq Stern and today we are going to discuss Failover Cluster networks.  This information applies to Windows 2008 thru Windows 2012 R2 Failover Clusters. What does a Windows Failover Cluster consider a “Cluster Network”? In a Windows Failover Cluster, Cluster Networks are created automatically… Read more

Establishing Network Connectivity to a Share in the Windows Recovery Environment

Hi there! My name is Neil Dsouza and I’m a Support Escalation Engineer with the Windows Core team. Today I’m going to cover a scenario where you have a server that fails to boot and all you want to do is copy the data off the machine to a network share.  In most cases connecting… Read more

Errors Retrieving File Shares on Windows Failover Cluster

Hi AskCore, Chinmoy here again. In today’s blog, I would like to share one more scenario in continuation to my previous blog on Unable to add file shares in Windows 2012 R2 Failover Cluster. This is about WinRm a setting that could lead to failure on adding file shares using Windows 2012/2012R2 Failover Cluster Manager…. Read more

How big should my OS drive be?

My name is Michael Champion and I’ve been working in support for more than 12 years here at Microsoft.  I have been asked by many customers “What is the recommended size for the OS partition for Windows Server?”.  There are minimum recommendations in the technical documentation (and release notes), but those recommendations are more on… Read more

So what exactly is the CLIUSR account?

From time to time, people stumble across the local user account called CLIUSR and wonder what it is, while you really don’t need to worry about it; we will cover it for the curious in this blog. The CLIUSR account is a local user account created by the Failover Clustering feature when it is installed… Read more

Windows Server Failover Cluster on Azure IAAS VM – Part 1 (Storage)

Hello, cluster fans. This is Mario Liu and I am a Support Escalation Engineer on the Windows High Availability team in Microsoft CSS Americas. I have a good news for you that starting in April 2015, Microsoft will support Windows Server Failover Cluster (WSFC) on Azure IAAS Virtual Machines. Here is the supportability announcement for… Read more

Building Windows Server Failover Cluster on Azure IAAS VM – Part 2 (Network and Creation)

Hello, cluster fans. In my previous blog, Part 1, I talked about how to work around the storage blocker in order to implement Windows Server Failover Cluster on Azure IAAS VM. Now let’s discuss another important part – Networking in Cluster on Azure. Before that, you should know some basic concepts of Azure networking. Here… Read more

Deciphering Storport Traces 101

storportWelcome back to the CORE Team Blog — Paul Reynolds here. UPDATE 01-04-17:  In previous blogs, I wrote about how to capture Storport traces in Windows 8 and Windows 2012 using the Performance Monitor GUI (see Tracing with Storport in Windows 2012 and Windows 8 with KB2819476 hotfix and Tracing with Storport in Windows 2012 and… Read more

Is Offloaded Data Transfers (ODX) working?

Offloaded Data Transfers (ODX) is a new data transfer strategy that makes advancements in moving files.  Only storage devices that comply with the SPC4 and SBC3 specifications will work with this feature.  With this feature, copying files from one server to another is much quicker.  This feature is only available in Windows 8/2012 and above… Read more

2012R2 iSCSI Target Settings for Configuring a Specific Network

Let's say you have a 2012R2 iSCSI Target Server with multiple networks configured. We all know that iSCSI traffic should be on a separate network. So how do you go by configuring iSCSI to use a specific network on the target server? In previous version of Windows this was much easier to find since it… Read more