Deploying IaaS VM Guest Clusters in Microsoft Azure

Authors: Rob Hindman and Subhasish Bhattacharya, Program Manager, Windows Server In this blog I am going to discuss deployment considerations and scenarios for IaaS VM Guest Clusters in Microsoft Azure. IaaS VM Guest Clustering in Microsoft Azure A guest cluster in Microsoft Azure is a Failover Cluster comprised of IaaS VMs. This allows hosted VM… Read more

Failover Cluster VM Load Balancing in Windows Server 2016

Windows Server 2016 introduces the Virtual Machine Load Balancing 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 are… 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

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

Workgroup and Multi-domain clusters in Windows Server 2016

In Windows Server 2012 R2 and previous versions, a cluster could only be created between member nodes joined to the same domain. Windows Server 2016 breaks down these barriers and introduces the ability to create a Failover Cluster without Active Directory dependencies. Failover Clusters can now therefore be created in the following configurations: Single-domain Clusters:… Read more

Virtual Machine Compute Resiliency in Windows Server 2016

In today’s cloud scale environments, commonly comprising of commodity hardware, transient failures have become more common than hard failures. In these circumstances, reacting aggressively to handle these transient failures can cause more downtime than it prevents. Windows Server 2016, therefore introduces increased Virtual Machine (VM) resiliency to intra-cluster communication failures in your compute cluster. Interesting… Read more

Configuring a File Share Witness on a Scale-Out File Server

In this blog, I am going to discuss the considerations for configuring a File Share Witness (FSW) for the Failover Cluster hosting your workloads, on a separate Scale-Out File Server cluster. You can find more information on Failover Clustering quorum here. File Share Witness on a Scale-Out File Server It is supported to use a… Read more

How to Run ChkDsk and Defrag on Cluster Shared Volumes in Windows Server 2012 R2

Cluster Shared Volumes (CSV) is a layer of abstraction on either the ReFS or NTFS file system (which is used to format the underlying private cloud storage). Just as with a non-CSV volume, at times it may be necessary to run ChkDsk and Defrag on the file system. In this blog, I am going to… Read more

Understanding the state of your Cluster Shared Volumes

Cluster Shared Volumes (CSV) is the clustered file system for the Microsoft Private cloud, first introduced in Windows Server 2008 R2. In Windows Server 2012, we radically improved the CSV architecture. We presented a deep dive of these architecture improvements at TechEd 2012. Building on this new and improved architecture, in Windows Server 2012 R2,… Read more

How to Setup a Failover Cluster in a RODC Environment

In Windows Server 2012, a Failover Cluster can be created in an environment that has access only to a Read Only Domain Controller (RODC) but not a Read Write Domain Controller (RWDC). This deployment model can be useful in a branch office with unreliable network connectivity or in a perimeter network (DMZ) where the cluster… Read more