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| 1 | +--- |
| 2 | +title: Enable replication for an added Azure VM disk in Azure Site Recovery |
| 3 | +description: This article describes how to enable replication for a disk added to an Azure VM that's enabled for disaster recovery with Azure Site Recovery |
| 4 | +ms.author: ankitadutta |
| 5 | +author: ankitaduttaMSFT |
| 6 | +manager: rochakm |
| 7 | +ms.topic: how-to |
| 8 | +ms.date: 01/14/2020 |
| 9 | +ms.custom: engagement-fy23 |
| 10 | +ms.service: site-recovery |
| 11 | +--- |
| 12 | + |
| 13 | + |
| 14 | +# Enable replication for a disk added to an Azure VM |
| 15 | + |
| 16 | + |
| 17 | +This article describes how to enable replication for data disks that are added to an Azure VM that's already enabled for disaster recovery to another Azure region, using [Azure Site Recovery](site-recovery-overview.md). |
| 18 | + |
| 19 | +Enabling replication for a disk you add to a VM is supported for Azure VMs with managed disks. |
| 20 | + |
| 21 | +When you add a new disk to an Azure VM that's replicating to another Azure region, the following occurs: |
| 22 | + |
| 23 | +- Replication health for the VM shows a warning, and a note in the portal informs you that one or more disks are available for protection. |
| 24 | +- If you enable protection for the added disks, the warning will disappear after initial replication of the disk. |
| 25 | +- If you choose not to enable replication for the disk, you can select to dismiss the warning. |
| 26 | + |
| 27 | + |
| 28 | + |
| 29 | + |
| 30 | + |
| 31 | +## Before you start |
| 32 | + |
| 33 | +This article assumes that you've already set up disaster recovery for the VM to which you're adding the disk. If you haven't, follow the [Azure to Azure disaster recovery tutorial](azure-to-azure-tutorial-enable-replication.md). |
| 34 | + |
| 35 | +## Enable replication for an added disk |
| 36 | + |
| 37 | +To enable replication for an added disk, do the following: |
| 38 | + |
| 39 | +1. In the vault > **Replicated Items**, click the VM to which you added the disk. |
| 40 | +2. Click **Disks**, and then select the data disk for which you want to enable replication (these disks have a **Not protected** status). |
| 41 | +3. In **Disk Details**, click **Enable replication**. |
| 42 | + |
| 43 | +  |
| 44 | + |
| 45 | +After the enable replication job runs and the initial replication finishes, the replication health warning for the disk issue is removed. |
| 46 | + |
| 47 | + |
| 48 | + |
| 49 | +## Next steps |
| 50 | + |
| 51 | +[Learn more](site-recovery-test-failover-to-azure.md) about running a test failover. |
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