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Copy file name to clipboardExpand all lines: support/sql/azure-sql/sql-installation-fails-sector-size-error-azure-vm.md
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Error description: Could not find the Database Engine startup handle.
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```
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This issue might occur with on-premises installations, but you are more likely to encounter it when installing SQL Server on Microsoft Azure virtual machine (VM).
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This issue might occur with on-premises installations, but you're more likely to encounter it when installing SQL Server on Microsoft Azure virtual machine (VM).
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## Cause
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> [!NOTE]
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> Non-Volatile Memory Express (NVMe) is a communication protocol that facilitates faster and more efficient data transfer between servers and storage systems by using Non-Volatile Memory (NVM). With NVMe, data can be transferred at the highest throughput and with the fastest response times.
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If an Azure virtual machine is deployed using the 8KB sector size, and you attempt to install SQL Server after deployment, the installation might fail.
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If an Azure virtual machine is deployed using the 8-KB sector size, and you attempt to install SQL Server after deployment, the installation might fail.
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> [!NOTE]
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> This scenario only occurs when you manually install SQL Server on an Azure VM, but not when you deploy a SQL Server VM from Azure Marketplace. The Azure Marketplace images are preconfigured to use the 4KB sector size.
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> This scenario only occurs when you manually install SQL Server on an Azure VM, but not when you deploy a SQL Server VM from Azure Marketplace. The Azure Marketplace images are preconfigured to use the 4-KB sector size.
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## Resolution
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To resolve this problem, reinstall SQL Server after forcing the Azure VM to use the 4KB sector size.
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To resolve this problem, reinstall SQL Server after forcing the Azure VM to use the 4-KB sector size.
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To successfully install SQL Server on your Azure VM, follow these steps:
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1. Restart the Azure VM.
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1. Reinstall SQL Server.
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The following screenshot shows the output of the `fsutil fsinfo sectorinfo` command for the `E:` drive, which has a sector size of 8 KB:
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The following screenshot shows the output of the `fsutil fsinfo sectorinfo` command for the `E:` drive, which has a 8-KB sector size:
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:::image type="content" source="media/sql-installation-fails-error-azure-vm/8k-sector-size-example.png" alt-text="Screenshot of command prompt output of 8k sector size.":::
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:::image type="content" source="media/sql-installation-fails-error-azure-vm/8k-sector-size-example.png" alt-text="Screenshot of command prompt output of 8-KB sector size.":::
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The following screenshot shows the output of the `fsutil fsinfo sectorinfo` command for the `E:` drive after updating the registry key to use the 4KB sector size:
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The following screenshot shows the output of the `fsutil fsinfo sectorinfo` command for the `E:` drive after updating the registry key to use the 4-KB sector size:
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:::image type="content" source="media/sql-installation-fails-error-azure-vm/4k-sector-size-example.png" alt-text="Screenshot of command prompt output of 4KB sector size.":::
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:::image type="content" source="media/sql-installation-fails-error-azure-vm/4k-sector-size-example.png" alt-text="Screenshot of command prompt output of 4-KB sector size.":::
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The `ForcedPhysicalSectorSizeInBytes` registry key is an OS-level setting, meaning that all drives currently attached, and those attached in the future, use the 4KB sector size unless this registry key is removed.
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The `ForcedPhysicalSectorSizeInBytes` registry key is an OS-level setting, meaning that all drives currently attached, and those attached in the future, use the 4-KB sector size unless this registry key is removed.
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