KB5126836 (Oct 2026 Monthly Rollup, Server 2012 R2) – all FC/MPIO SAN disks fail to start (Code 10) after reboot
Has anyone else seen SAN disks disappear after installing KB5126836 on Windows Server 2012 R2? Environment: Windows Server 2012 R2 Standard (ESU), Dell PowerEdge R640 Emulex LPe35002 FC HBAs (elxfc 12.0.257.9, firmware 14.0.539.26) Microsoft MPIO…
Windows for business | Windows Server | Storage high availability | Other
How to Troubleshoot a Degraded Virtual Disk in Windows Server Storage Spaces
A Storage Spaces virtual disk becomes degraded after a physical drive reports errors. How can I identify the failing drive, verify the virtual disk’s resiliency and data integrity, and safely restore redundancy without risking data loss?
Windows for business | Windows Server | Storage high availability | Other
Offline file disk location
How can I chose/change the location that my offline files are stored in? I.E. change it from a C: to a D: drive.
Windows for business | Windows Server | Storage high availability | Other
How to clear Cluster Validation failures
I have a 3 node WIndows Server 2025 cluster, which is reporting a Critical failure due to previous issues in its Validation Reports. If I re-run Test-Cluster, I get a few warnings, but there are no longer any failures listed. Yet this error keeps coming…
Windows for business | Windows Server | Storage high availability | Other
Performance degradation issue after node replacement
After replacing a server node, the Windows environment experiences degraded performance, with some system resources remaining unavailable or unevenly distributed. How can we diagnose the resource allocation status, identify unassigned resources, and…
Windows for business | Windows Server | Storage high availability | Other
Issue to Optimize volume
Hi, How to resolve it below? To run Optimize volume well?
Windows for business | Windows Server | Storage high availability | Other
Backup Exec old IMG folders consuming ~3 TB cannot be deleted
Hello, At one of our clients, we have a Backup Exec disk storage that contains a large number of IMGxxxxx folders. Some of these folders date back to January 2025, while others are several months old. These old IMG folders are consuming approximately 3…
Windows for business | Windows Server | Storage high availability | Other
Critical Azure VM in Availability Set experienced ungraceful reboot during platform maintenance; how to set up Scheduled Events alerts?
Despite being deployed within an Availability Set, a critical Azure VM instance underwent an unexpected hard reboot during a scheduled platform maintenance window. To prevent uncoordinated downtime in the future, how do we properly capture and alert on…
Windows for business | Windows Server | Storage high availability | Other
iSCSI Persistent Target Mappings Lost After a NIC Driver Update
Hi everyone, After upgrading the network adapter driver on an application server, all previously configured persistent iSCSI target sessions are disconnected, and the associated raw LUN volumes remain Offline. What is the recommended way to restore the…
Windows for business | Windows Server | Storage high availability | Other
How to fix storage spaces error No resiliency check the physical drives section?
the Power supply in my Windows 11 pro system Died and took 3 of my HD's with it. Those drives stopped showing at all in the BIOS. I removed them from the system / Retired them in Powershell / then ran " Repair-VirtualDisk -FriendlyName ' ' …
Windows for business | Windows Server | Storage high availability | Other
FSRM Quotas suddenly stop auto-expanding — how can I recover them?
Hey everyone, I’m running into a strange issue with File Server Resource Manager (FSRM) on a Windows file server. I have auto-expanding quotas configured for users’ home folders. They normally increase automatically when the quota reaches 100%, but…
Windows for business | Windows Server | Storage high availability | Other
SmsProxy.exe eating up all RAM during SMS file migration and crashing target server — how to tune buffer size ah?
Guys, need some advice here. Currently doing a file server migration using SMS, but halfway through the copy phase, the SmsProxy.exe process on the destination node got massive memory leak. The moment the sync job starts traversing deep directory trees,…
Windows for business | Windows Server | Storage high availability | Other
Windows Server 2025 storage performance issue
We would like Microsoft to confirm: (1) whether storport.sys's DPC/interrupt completion-redirection logic changed between Windows Server 2022 and Windows Server 2025; (2) whether this is expected/by-design, e.g. related to the new Storage Multi-Queue…
Windows for business | Windows Server | Storage high availability | Other
Why can the setting size of storage space exceed the size of the storage pool it is in?
The version of Windows I am using is: Windows11 23H2 Previously, I created a parity-based storage pool using four 2TB hard drives, and added a 7TB storage space to it. (as shown below) Recently, I replaced all hard disks with 8TB drives, and the storage…
Windows for business | Windows Server | Storage high availability | Other
Windows for business | Windows Client for IT Pros | User experience | Other
Storage Spaces Direct - Can't Remove Physical Disk from the pool in order to able to use it by operating system
Unable to remove disk from S2D I have a virtual lab /virtual box/ windows 2019 server environment Lab setup: 1 Domain controller windows 2019 Datacenter server 3 windows server 2019 Datacenter each of them member of the domain,…
Windows for business | Windows Server | Storage high availability | Clustering and high availability
Windows for business | Windows Server | User experience | Other
Windows for business | Windows Server | Storage high availability | Other
The Windows Hardware Lab Kit failed to recognize the NVMe SSD
During WHQL testing of an NVMe SSD, the SSD can be normally recognized in the test machine's M.2 direct-attach environment, but cannot be recognized on the server via Windows Hardware Lab Kit (HLK). What are the possible causes and solutions?
Windows for business | Windows Server | Storage high availability | Other
Unable to access DFSPrivate shortcut created by DFSR replication
Hi everyone, I've set up DFS Replication (DFSR) on a Windows Server environment and noticed that a hidden shortcut called DFSPrivate inside my replicated folder, But I Am unable to access this shortcut My environment: Windows Server 2019 (replication…
Windows for business | Windows Server | Storage high availability | Other
Deleted an image and then found its properties somehow
Windows for business | Windows Server | Storage high availability | Other
How to make my storage pool bootable entities
i have a Virtual machine with a virtual disk created from storage pool ,pool was created from 4 disks, how do i boot from storage pool instead of native disk ?
Azure Storage Explorer
An Azure tool that is used to manage cloud storage resources on Windows, macOS, and Linux.
Azure Disk Storage
A high-performance, durable block storage designed to be used with Azure Virtual Machines and Azure VMware Solution.
Windows for business | Windows Server | User experience | Other
Windows for business | Windows Server | Storage high availability | Other
Boot Drive Included in Storage Spaces
I have gone through layers of support and the community and no one has ever even heard of Storages Spaces. I have one simple question, Can I create a Storage Spaces pool with just the boot drive and an empty drive, mirror it and boot from it…