Category: Windows Server 2012

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Unable to RDP into Azure VMs

After patching all the Windows Server in Azure, a colleague calls me in panic, because their users, could not access their VMs through RDP. They were getting a CredSSP error (picture bellow).  So, after reading the link bellow, it seems it could be related with the March update. https://support.microsoft.com/en-us/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018 Rebooting the VM didn’t sort the issue, there’s a few mitigations listed in this post https://blogs.technet.microsoft.com/mckittrick/unable-to-rdp-to-virtual-machine-credssp-encryption-oracle-remediation/ Then I realize that was...

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How to extend Azure Service Fabric to on-premise?

You can deploy a Service Fabric cluster on any physical or virtual machine running the Windows Server operating system, including ones residing in your on-premises datacenters. You use the standalone Windows Server package available for download from the Azure online documentation website (see here). To deploy an on-premises Service Fabric cluster, perform the following steps: Plan for your cluster infrastructure. You must consider the resiliency of the hardware and network...

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Hyper-V 2012 Hotfixes: Where I can find it and how to automate the deployment ?

After my session at TechEd about Best Practices for Virtualizing and Managing Microsoft SharePoint 2013 with Microsoft System Center 2012 R2 and Windows Server 2012 R2 one of the questions that I got was where I can find the Hyper-V hotfixes and how can I automate the deployment process. Where I can find the most update list of Hotfixes for Hyper-V 2012 and Hyper-V 2012 R2? I found a couple...

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SCOM Alert: WinRM is not functional or not the right version

On System Center 2012 R2 Operations Manager (SCOM) (with UR2) starting to appear Critical Alerts coming from System Center Advisor (SCA) saying that my System Center 2012 R2 Virtual Machine Manager (SCVMM) (with UR2) “WinRM is not functional or not the right version”. The alert description is: An issue was found with Windows Remote Management (WinRM) on the specified server.The specified server cannot be used for VMM server roles such...

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iSCSI connection issues with Hyper-V Server

If you have a Hyper-V Cluster connected through iSCSI to a storage solution and sometimes you get errors that your CSV volumes went offline. In some cases, the Windows Failover Cluster is able to recover and bring online automatically and your virtual machines will not stop. In other situation if your CSV volume is not been recovery you will have to bring online the volume and then start all the...

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Cluster Shared Volumes (CSV) errors on Hyper-V Cluster

In a failover cluster, virtual machines can use Cluster Shared Volumes that are on the same LUN (disk), while still being able to fail over (or move from node to node) independently of one another. Virtual machines can use a Cluster Shared Volume only when communication between the cluster nodes and the volume is functioning correctly, including network connectivity, access, drivers, and other factors. You probably didn’t notice any issues...

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MPIO on Hyper-V Server

On the previous version of Windows Server (prior Windows Server 2012) you have to download and install MultiPath I/O (MPIO). Since Windows Server 2012 MPIO is a feature that you can enable. Because it’s a feature that comes with the server, means that you will have the PowerShell cmdlets available. Use of the MPIO module in Windows PowerShell requires an “elevated” PowerShell window, opened with Administrator privileges. How to do...

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Hyper-V Best Practices Analyzer

Sometimes when you deploy an Hyper-V Server you don’t know if you miss any configuration or if you are following the best practices regarding security, configuration or even supportability of Hyper-V Server in case you need some help from Microsoft Support. To help us Microsoft has created a few rules to help us improve our environments — these are referred to as best practices. However, it is not easy to...

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Restoring Hyper-V and Virtual Machines using Windows Server Backup

Cluster, Hyper-V Replica, Storage Migration, and other features makes for a higher availability for Hyper-V virtual machines, but it is impossible to provide 100 percent assurance in any system. When we lose a host computer, for example, not only is a single system offline, but also all the virtual machines that are running in there. It does not matter if it is only an application, a virtual machine, or the...

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Backing up Hyper-V and virtual machines using Windows Server Backup

Previous versions of Hyper-V (like 2008, 2008 R2 and 2008 R2 SP1) had complications and incompatibilities with the built-in backup tool, forcing the administrators to acquire other solutions for backing up and restoring. Since Windows Server 2012, Windows Server comes with a feature known as Windows Server Backup (WSB), which has full Hyper-V integration, allowing you to back up and restore your server, applications, Hyper-V, and virtual machines. WSB is...