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---
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title: Troubleshoot data corruption and storage replication failures in Windows Server 2025
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title: Troubleshoot Data Corruption and Storage Replication Failures in Windows Server 2025
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description: Discusses how to identify, troubleshoot, and resolve issues that relate to data corruption, disk errors, and storage replication failures in Windows Server 2025.
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ms.date: 12/19/2025
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author: kaushika-msft
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## Symptoms
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You might experience one or more of the following symptoms on Windows Server 2025:
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You might experience one or more of the following symptoms in Windows Server 2025:
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- The event logs list disk, storage, and replication-related errors. These errors might include the following events:
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- Event ID 7 (device error)
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- Event ID 11 (controller error)
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- Event ID 153 (disk timeout)
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- Event ID 1112 (Storage Replica replication error)
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- Files, databases, or application storage appear to be corrupt.
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- Files or databases appear to be corrupted, or application storage appears to be corrupted.
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- Storage Replica experiences replication failures.
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- Storage monitoring tools generate warnings or alerts that indicate degraded performance or reliability.
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## Cause
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The following factors can cause these issues:
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- Physical disk failures, such as bad sectors or mechanical defects.
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- Data corruption within the storage subsystem.
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- Underlying storage hardware issues that interfere with replication processes.
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- Misconfigured storage replication settings, such as inadequate log sizes or incorrect replication mode.
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- Disk configuration issues that reduce system resilience.
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- Physical disk failures, such as bad sectors or mechanical defects
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- Data corruption within the storage subsystem
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- Underlying storage hardware issues that interfere with replication processes
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- Misconfigured storage replication settings, such as inadequate log sizes or incorrect replication mode
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- Disk configuration issues that reduce system resilience
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## Resolution
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To resolve data corruption and storage replication failures in Windows Server 2025, follow these steps.
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1. To inspect hardware for failing disks, open a Windows PowerShell command prompt and then run the following cmdlets:
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1. To inspect hardware for failing disks, open a Windows PowerShell command prompt, and then run the following cmdlets:
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```powershell
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Get-PhysicalDisk | Format-Table -AutoSize
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1. Make sure that firmware is up to date on all storage controllers.
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1. To fix bad disk sectors and recover as much data as possible, open a Windows Command Prompt window and then run the following command:
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1. To fix bad disk sectors and recover as much data as possible, open a Windows Command Prompt window, and then run the following command:
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```console
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chkdsk <Drive>: /F /R
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> [!NOTE]
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> In this command, \<Drive> represents the drive to be fixed.
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1. If `chkdsk` couldn't recover some of the data, restore that data from your backup.
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1. If `chkdsk` doesn't recover some part of the data, restore that data from your backup.
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1. Review your disk and Storage Replica configuration, and make sure your system follows best practices. Pay particular attention to the following settings:
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1. Review your disk and Storage Replica configuration, and make sure that your system follows best practices. Pay particular attention to the following settings:
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- Allocate sufficient space for log files (production workloads should have at least 8 GB available for log files).
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- Allocate sufficient network bandwidth for replication traffic.
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- Confirm the volume alignment and cluster size settings.
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- Validate that the replication mode (synchronous or asynchronous) matches your requirements.
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- Verify the volume alignment and cluster size settings.
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- Verify that the replication mode (synchronous or asynchronous) matches your requirements.
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- Make sure that all replication nodes are running Windows Server Datacenter edition.
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1. To confirm that you've restored data consistency and transfer reliability, test storage replication. At a PowerShell command prompt, run the following cmdlets:
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1. To verify that you restored data consistency and transfer reliability, test storage replication. At a PowerShell command prompt, run the following cmdlets:
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```powershell
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Get-SRGroup | Format-List *
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Get-SRPartnership | Format-List *
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Test-SRTopology -SourceComputerName Server1 -SourceVolumeName D: -DestinationComputerName Server2 -DestinationVolumeName D:
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```
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1. To confirm that your system is stable, monitor the replication status for at least 24 hours.
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1. To verify that your system is stable, monitor the replication status for at least 24 hours.
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1. For more troubleshooting information, including specialized troubleshooting for Event ID 153, see [Data corruption and disk errors troubleshooting guidance](troubleshoot-data-corruption-and-disk-errors.md).
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1. If issues persist, consider contacting Microsoft Support. For information about helpful information to add to your support request, review [Data collection](#data-collection).
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1. If issues persist, consider contacting Microsoft Support. To learn about helpful information that you can add to your support request, review [Data collection](#data-collection).
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## Data collection
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Before you contact Microsoft Support for assistance, gather the following information from your Windows Server 2025 environment:
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- Event Viewer logs for disk, storage, and replication errors (System, Application, and Microsoft-Windows-StorageReplica/Admin logs).
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- Output from PowerShell cmdlets such as the following cmdlets:
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- Output from PowerShell cmdlets, such as the following cmdlets:
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```powershell
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Get-PhysicalDisk | Format-Table -AutoSize
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```
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- Details of your storage configuration, including RAID levels, disk models, firmware versions, and storage controller information.
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- Screenshots or exports from monitoring tools showing error codes and performance metrics.
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- Steps you have already taken to troubleshoot the issue.
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- Screenshots or exports from monitoring tools that show error codes and performance metrics.
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- The steps that you already took to troubleshoot the issue.
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## References
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