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title: Detach a data disk from a Linux VM - Azure| Microsoft Docs
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description: Learn to detach a data disk from a virtual machine in Azure using CLI 2.0 or the Azure portal.
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services: virtual-machines-linux
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documentationcenter: ''
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author: cynthn
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manager: timlt
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editor: ''
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tags: azure-service-management
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ms.assetid:
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ms.service: virtual-machines-linux
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ms.workload: infrastructure-services
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ms.tgt_pltfrm: vm-windows
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ms.devlang: na
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ms.topic: article
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ms.date: 03/21/2017
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ms.author: cynthn
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---
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# How to detach a data disk from a Linux virtual machine
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When you no longer need a data disk that's attached to a virtual machine, you can easily detach it. This removes the disk from the virtual machine, but doesn't remove it from storage.
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> [!WARNING]
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> If you detach a disk it is not automatically deleted. If you have subscribed to Premium storage, you will continue to incur storage charges for the disk. For more information refer to [Pricing and Billing when using Premium Storage](../storage/storage-premium-storage.md#pricing-and-billing).
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If you want to use the existing data on the disk again, you can reattach it to the same virtual machine, or another one.
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## Detach a data disk using CLI 2.0
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```azurecli
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az vm disk detach -g myResourceGroup --vm-name myVm -n myDataDisk
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```
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The disk remains in storage but is no longer attached to a virtual machine.
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## Detach a data disk using the portal
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1. In the portal hub, select **Virtual Machines**.
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2. Select the virtual machine that has the data disk you want to detach and click **Stop** to deallocate the VM.
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3. In the virtual machine blade, select **Disks**.
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4. At the top of the **Disks** blade, select **Edit**.
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5. In the **Disks** blade, to the far right of the data disk that you would like to detach, click the  detach button.
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5. After the disk has been removed, click Save on the top of the blade.
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6. In the virtual machine blade, click **Overview** and then click the **Start** button at the top of the blade to restart the VM.
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The disk remains in storage but is no longer attached to a virtual machine.
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## Next steps
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If you want to reuse the data disk, you can just [attach it to another VM](virtual-machines-linux-add-disk.md?toc=%2fazure%2fvirtual-machines%2flinux%2ftoc.json).
@@ -30,12 +30,14 @@ If you want to use the existing data on the disk again, you can reattach it to t
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## Detach a data disk using the portal
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1. In the portal hub, select **Virtual Machines**.
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2. Select the virtual machine that has the data disk you want to detach and then click **All settings**.
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3. In the **Settings** blade, select **Disks**.
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4. In the **Disks** blade, select the data disk that you would like to detach.
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5. In the blade for the data disk, click **Detach**.
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2. Select the virtual machine that has the data disk you want to detach and click **Stop** to deallocate the VM.
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3. In the virtual machine blade, select **Disks**.
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4. At the top of the **Disks** blade, select **Edit**.
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5. In the **Disks** blade, to the far right of the data disk that you would like to detach, click the  detach button.
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5. After the disk has been removed, click Save on the top of the blade.
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6. In the virtual machine blade, click **Overview** and then click the **Start** button at the top of the blade to restart the VM.
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The disk remains in storage but is no longer attached to a virtual machine.
For more information, see [Remove-AzureRmVMDataDisk](https://msdn.microsoft.com/library/mt603614.aspx)
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For more information, see [Remove-AzureRmVMDataDisk](/powershell/remove-azurermvmdatadisk).
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## Next steps
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If you want to reuse the data disk, you can just [attach it to another VM](virtual-machines-windows-attach-disk-portal.md?toc=%2fazure%2fvirtual-machines%2fwindows%2ftoc.json)
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