Using PowerShell script make any application highly available

Author: Amitabh Tamhane Senior Program Manager Windows Server Microsoft OS releases: Applicable to Windows Server 2008 R2 or later Now you can use PowerShell scripts to make any application highly available with Failover Clusters!!! The Generic Script is a built-in resource type included in Windows Server Failover Clusters. Its advantage is flexibility: you can make… Read more

NetFT Virtual Adapter Performance Filter

In this blog I will discuss what the NetFT Virtual Adapter Performance Filter is and the scenarios when you should or should not enable it. The Microsoft Failover Cluster Virtual Adapter (NetFT) is a virtual adapter used by the Failover Clustering feature to build fault tolerant communication routes between nodes in a cluster for intra-cluster… Read more

Speeding Up Failover Tips-n-Tricks

From time-to-time people ask me for suggestions on what tweaks they can do to make Windows server Failover Cluster failover faster. In this blog I’ll discuss a few tips-n-tricks. Disable NetBIOS over TCP/IP – Unless you need legacy OS compatibility, NetBIOS is doing you nothing but slow you down.  You want to disable NetBIOS in a… Read more

Failover Cluster Node Fairness in Windows Server 2016

Windows Server 2016 introduces the Node Fairness feature to optimize the utilization of nodes in a Failover Cluster. During the lifecycle of your private cloud, certain operations (such as rebooting a node for patching), results in the Virtual Machines (VMs) in your cluster being moved. This could result in an unbalanced cluster where some nodes… Read more

Troubleshooting Hangs Using Live Dump

In this blog post https://blogs.msdn.microsoft.com/clustering/2014/12/08/troubleshooting-cluster-shared-volume-auto-pauses-event-5120/ we discussed what a Cluster Shared Volumes (CSV) event ID 5120 means, and how to troubleshoot it. In particular, we discussed the reason for auto-pause due to STATUS_IO_TIMEOUT (c00000b5), and some options on how to troubleshoot it. In this post we will discuss how to troubleshoot it using LiveDumps, which enables debugging the system… Read more

Managing Failover Clusters with 5nine Manager

Hi Cluster Fans, It is nice to be back on the Cluster Team Blog!  After founding this blog and working closely with the cluster team for almost eight years, I left Microsoft last year to join a Hyper-V software partner, 5nine Software.  I’ve spoken with thousands of customers and I realized that Failover Clustering is… Read more

How can we improve the installation and patching of Windows Server? (Survey Request)

Do you want your server OS deployment and servicing to move faster? We’re a team of Microsoft engineers who want your experiences and ideas around solving real problems of deploying and servicing your server OS infrastructure. We prefer that you don’t love server OS deployment already, and we’re interested even if you don’t use Windows… Read more

Configuring Site Awareness with Multi-active Disaggregated Datacenters

In a previous blog,I discussed the introduction of site-aware Failover Clusters in Windows Server 2016. In this blog, I am going to walk through how you can configure site-awareness for your multi-active disaggregated datacenters. You can learn more about Software Defined Storage and the advantages of a disaggregated datacenter here. Consider the following multi-active datacenters,… Read more

Hyper-converged with Windows Server 2016

One of the big hot features in Windows Server 2016 which has me really excited is Storage Spaces Direct (S2D).  With S2D you will be able to create a hyper-converged private cloud.  A hyper-converged infrastructure (HCI) consolidates compute and storage into a common set of servers.  Leveraging internal storage which is replicated, you can create… Read more

Site-aware Failover Clusters in Windows Server 2016

Windows Server 2016, debuts the birth of site-aware clusters. Nodes in stretched clusters can now be grouped based on their physical location (site). Cluster site-awareness enhances key operations during the cluster lifecycle such as failover behavior, placement policies, heartbeating between the nodes and quorum behavior. In the remainder of this blog I will explain how… Read more