failover cluster

Windows Server 2022 on AWS EC2 delivers familiar Windows enterprise capabilities inside Amazon’s elastic compute fabric, but building robust, performant, and cost‑efficient Windows architectures in the cloud requires more than lift‑and‑shift thinking — it demands an understanding of how compute...

Microsoft has quietly closed a long‑standing operational gap for datacenter teams: Windows Server failover clusters can now host Storage Spaces Direct (S2D)–backed CSVs and traditional SAN‑LUN CSVs side‑by‑side, giving organizations a supported path to modernize without abandoning existing SAN...

This article walks through a practical, production‑grade design and implementation for running a three‑node SQL Server Failover Cluster Instance (FCI) across three AWS Availability Zones using Storage Spaces Direct (S2D) built on locally attached Amazon EBS volumes — a pattern that brings true...

Microsoft has confirmed CVE-2025-59260 as a local information‑disclosure vulnerability in the Microsoft Failover Cluster virtual driver that can write sensitive cluster state into log files or otherwise expose privileged configuration data to low‑privileged local actors, and Microsoft has...

Microsoft has published a security advisory for CVE-2025-59188, an information-disclosure vulnerability in Microsoft Failover Cluster that can allow a low‑privilege, local actor to read sensitive information written to cluster diagnostic/log files; a vendor fix is available and the vulnerability...

Microsoft has published an advisory for CVE-2025-47979, an information‑disclosure vulnerability in the Windows Failover Cluster service that can cause sensitive cluster data to be written to accessible log files, creating a local, low‑privilege attack path that should be treated as operationally...

Microsoft has opened the door for U.S. government customers to manage on‑premises and third‑party SQL Server instances from the Azure Government portal by making Azure Arc‑enabled SQL Server on Windows available in the US Government Virginia region — but the release is deliberately limited in...

Microsoft has released an update that resolves a severe clustering regression in Windows Server 2019 introduced by July’s cumulative security rollup, closing a weeks‑long incident that left some failover clusters unstable and virtual machines repeatedly restarting. Background / Overview In early...

The July 2025 security update for Windows Server 2019, identified as KB5062557, has introduced significant challenges for IT administrators managing failover clusters. Post-installation, numerous organizations have reported critical issues, including cluster service failures and repeated virtual...

Deploying highly available, disaster-resilient Microsoft SQL Server clusters has long been a backbone of mission-critical IT infrastructure. In the modern enterprise era, where cloud adoption is accelerating and workloads are rapidly migrating from on-premises environments, reimagining the...

The VHD file was accidently deleted, I had a backup of the VHD that is 30 days old. I copied the backup VHD file back into the file location where it was originally deleted. When I tried to restart the VM from the Failover Cluster manager it failed and gave me a couple of codes. It says I dont...

Hi. How to forse to move failover cluster from one host to another. I live migrate virtual machines, volumes from second server to first server, but failover cluster and Witness volume is still on second server. How to force to move it to first server host?

Hello Windows Insiders! Today we are pleased to release a new build of the Windows Server vNext Long-Term Servicing Channel (LTSC) release that contains both the Desktop Experience and Server Core, as well as a new build of the next Windows Server Semi-Annual Channel release and Microsoft...

Hello Windows Insiders! Today we are pleased to release a new build of the Windows Server vNext Long-Term Servicing Channel (LTSC) release that contains both the Desktop Experience and Server Core, as well as a new build of the next Windows Server Semi-Annual Channel release, Microsoft Hyper-V...

Hello Windows Insiders! Today we are pleased to release the first build of the Windows Server 2019 Long-Term Servicing Channel (LTSC) release that contains both the Desktop Experience as well as Server Core in all 18 server languages, as well as the first build of the next Windows Server...

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Fixes an issue in which the List Running Processes test fails when you run the Failover Cluster Validation Wizard. This issue occurs when you run the wizard on a Windows 7-based or Windows Server 2008 R2-based cluster node. More...

Fixes an issue in which an error occurs when you send messages from one instance of Message Queuing 4.0 to another instance of Message Queuing 4.0. This issue occurs on a Windows Server 2008-based computer that is in a failover cluster. More...

Bulletin Severity Rating:Moderate - This security update resolves a privately reported vulnerability in Windows shared cluster disks. The vulnerability could allow data tampering on the administrative shares of failover cluster disks. By default, Windows Server 2008 R2 servers are not affected...