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3 answers One of the answers was accepted by the question author.

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
asked 2026-10-26T03:36:18.52+00:00
Jayadeep Reddy Padala 25 Reputation points
answered 2026-10-26T10:09:41.4266667+00:00
Jayadeep Reddy Padala 25 Reputation points
2 answers

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
asked 2026-10-19T14:44:20.6033333+00:00
John Wilson 40 Reputation points
commented 2026-10-23T07:22:02.6133333+00:00
Ronald Sabiiti 1,260 Reputation points Independent Advisor
1 answer

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
asked 2020-12-18T19:13:06.27+00:00
jacob smith 1 Reputation point
answered 2026-10-15T12:36:18.26+00:00
ramesh rajbanshi 0 Reputation points
3 answers One of the answers was accepted by the question author.

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
asked 2026-03-24T10:06:31.3933333+00:00
Rob Leadbeater 20 Reputation points
edited an answer 2026-10-15T09:43:04.1133333+00:00
Andreas Walker 0 Reputation points
2 answers

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
asked 2026-10-12T01:08:04.4+00:00
RahmaNali 40 Reputation points
answered 2026-10-12T01:38:24.69+00:00
Harry Phan 35,725 Reputation points Independent Advisor
2 answers

Issue to Optimize volume

Hi, How to resolve it below? To run Optimize volume well?

Windows for business | Windows Server | Storage high availability | Other
asked 2026-09-30T03:56:56.7366667+00:00
Jonathan 480 Reputation points
answered 2026-09-30T05:36:59.4733333+00:00
Hoang Le 6,445 Reputation points Independent Advisor
1 answer

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
asked 2026-09-25T09:03:38.93+00:00
MS 0 Reputation points
answered 2026-09-25T09:39:51.8233333+00:00
Hoang Le 6,445 Reputation points Independent Advisor
1 answer

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
asked 2026-09-21T23:13:19.8133333+00:00
Cooper Turner 20 Reputation points
answered 2026-09-22T08:25:58.3666667+00:00
Daphne Huynh (WICLOUD CORPORATION) 2,540 Reputation points Microsoft External Staff Moderator
2 answers

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
asked 2026-09-09T07:34:37.07+00:00
Rakri Aizat 40 Reputation points
answered 2026-09-09T08:27:29.98+00:00
Hoang Le 6,445 Reputation points Independent Advisor
2 answers

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
asked 2024-01-15T09:15:01.9233333+00:00
Frank Kallal 0 Reputation points
commented 2026-08-26T13:48:09.9366667+00:00
Philippe Verdy 16 Reputation points
2 answers One of the answers was accepted by the question author.

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
asked 2026-08-25T09:46:31.7133333+00:00
Smith Oliver 100 Reputation points
accepted 2026-08-26T04:15:38.3933333+00:00
Smith Oliver 100 Reputation points
1 answer

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
asked 2026-08-05T06:13:28.6166667+00:00
Hakim Ismail 20 Reputation points
answered 2026-08-11T01:20:08.08+00:00
Allan Solomon Mejia 10,635 Reputation points
1 answer

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
asked 2026-07-21T05:19:37.18+00:00
Saiqa Abbas 5 Reputation points
answered 2026-07-21T05:58:52.6033333+00:00
Xuan Nhu 1,695 Reputation points Independent Advisor
1 answer One of the answers was accepted by the question author.

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
asked 2024-01-01T18:59:56.6866667+00:00
焰舒 曹 20 Reputation points
commented 2026-07-05T13:09:06.65+00:00
Yen Binh 0 Reputation points
6 answers One of the answers was accepted by the question author.

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
asked 2022-07-29T20:35:55.093+00:00
Krisztian 46 Reputation points
answered 2026-06-30T07:21:08.9866667+00:00
Vivian Ballantyne 0 Reputation points
1 answer One of the answers was accepted by the question author.

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
asked 2026-06-15T12:36:18.7633333+00:00
光俊 贾 20 Reputation points
accepted 2026-06-17T06:24:36.43+00:00
光俊 贾 20 Reputation points
2 answers

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
asked 2026-05-29T04:13:52.3666667+00:00
Researcher 96 Reputation points
answered 2026-05-29T05:07:53.0233333+00:00
HLBui 15,190 Reputation points Independent Advisor
2 answers

Deleted an image and then found its properties somehow

Windows for business | Windows Server | Storage high availability | Other
asked 2026-05-16T02:12:23.2966667+00:00
Anthony Kaka 0 Reputation points
answered 2026-05-19T14:24:35.0166667+00:00
Domic Vo 36,745 Reputation points Independent Advisor
1 answer

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
Azure Storage Explorer

An Azure tool that is used to manage cloud storage resources on Windows, macOS, and Linux.

309 questions
Azure Disk Storage
Azure Disk Storage

A high-performance, durable block storage designed to be used with Azure Virtual Machines and Azure VMware Solution.

695 questions
Windows for business | Windows Server | User experience | Other
Windows for business | Windows Server | Storage high availability | Other
asked 2023-01-25T06:16:34.84+00:00
Pavan Kumar 1 Reputation point
commented 2026-05-10T20:40:46.41+00:00
John Musbach 0 Reputation points
5 answers

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…

Windows for business | Windows Server | Storage high availability | Other
asked 2021-06-29T19:22:12.657+00:00
Glenn Roe 16 Reputation points
commented 2026-05-10T20:38:48.6066667+00:00
John Musbach 0 Reputation points