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Copy file name to clipboardExpand all lines: articles/azure-vmware/connect-multiple-private-clouds-same-region.md
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The **AVS Interconnect** feature lets you create a network connection between two or more Azure VMware Solution private clouds located in the same region. It creates a routing link between the management and workload networks of the private clouds to enable network communication between the clouds.
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You can connect a private cloud to multiple private clouds, and the connections are nontransitive. For example, if _private cloud A_ is connected to _private cloud B_, and _private cloud B_ is connected to _private cloud C_, private clouds A and B wouldn't communicate until they were directly connected.
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You can connect a private cloud to multiple private clouds, and the connections are nontransitive. For example, if _private cloud A_ is connected to _private cloud B_, and _private cloud B_ is connected to _private cloud C_, private clouds A and C wouldn't communicate until they were directly connected.
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You can only connect private clouds in the same region. To connect private clouds in different regions, [use ExpressRoute Global Reach](tutorial-expressroute-global-reach-private-cloud.md) to connect them in the same way you connect your private cloud to your on-premises circuit.
Copy file name to clipboardExpand all lines: articles/backup/backup-azure-vms-agentless-multi-disk-crash-consistent-overview.md
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title: About agentless multi-disk crash-consistent backup for Azure Virtual Machines by using Azure Backup
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description: Learn about agentless multi-disk crash-consistent backup for Azure VMs by using Azure Backup via Azure portal.
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ms.topic: overview
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ms.date: 09/11/2024
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ms.date: 07/30/2025
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author: AbhishekMallick-MS
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ms.author: v-mallicka
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# Customer intent: As an IT administrator managing Azure VMs, I want to implement agentless multi-disk crash-consistent backups, so that I can optimize backup performance without the need for additional agents or scripts when my virtual machine can tolerate crash-consistent recovery.
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# About agentless multi-disk crash-consistent backup for Azure VMs (preview)
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# About agentless multi-disk crash-consistent backup for Azure VMs
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Azure Backup supports agentless VM backups by using multi-disk [crash-consistent restore points](/azure/virtual-machines/virtual-machines-create-restore-points) (preview). The [Enhanced VM backup policy](backup-azure-vms-enhanced-policy.md) now enables you to configure the consistency type of the backups (application-consistent restore points or crash-consistent restore points preview) for Azure VMs. This feature also enables Azure VM backup to retry the backup operation with *crash-consistent snapshots* (for *supported VMs*) if the application-consistent snapshot fails.
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Azure Backup supports agentless virtual machine (VM) backups by using multi-disk [crash-consistent restore points](/azure/virtual-machines/virtual-machines-create-restore-points). The [Enhanced VM backup policy](backup-azure-vms-enhanced-policy.md) now enables you to configure the consistency type of the backups (application-consistent restore points or crash-consistent restore point) for Azure VMs. This feature also enables Azure VM backup to retry the backup operation with *crash-consistent snapshots* (for *supported VMs*) if the application-consistent snapshot fails.
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>[!Note]
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>The agentless multi-disk crash consistent VM backup feature is generally available. This release includes changes to billing; see the [pricing details](#pricing-for-agentless-multi-disk-crash-consistent-backup).
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## When do I choose crash-consistent backup over application-consistent backup?
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- If you don't want to install the [VM Agent](/azure/virtual-machines/extensions/agent-windows) or [snapshot extension](/azure/virtual-machines/extensions/vmsnapshot-windows) required for application-consistent or file-system-consistent snapshots in your Azure VM, use crash-consistent backups for an agentless backup solution.
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- If your operating system is not supported for application or file-system-consistent backup, use crash-consistent backups. Crash-consistent backup is operating system agnostic as it doesn't rely on the VM agent or snapshot extension.
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- If your operating system isn't supported for application or file-system-consistent backup, use crash-consistent backups. Crash-consistent backup is operating system agnostic as it doesn't rely on the VM agent or snapshot extension.
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## When do I not use crash-consistent backups?
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Don't use crash-consistent backups in the following scenarios:
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-If your application can't tolerate recovery from crash-consistent backups.
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-If you use pre/post scripts for Linux VM backups.
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-If you use read/write host caching and your workload is sensitive to cached data not being flushed before backup.
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-Your application can't tolerate recovery from crash-consistent backups.
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-You use pre/post scripts for Linux VM backups.
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-You use read/write host caching and your workload is sensitive to cached data not being flushed before backup.
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## Pricing for agentless multi-disk crash-consistent backup
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During preview, Azure VMs backed up with multi-disk crash-consistent type is charged for 0.5 protected instance (PI) and the backup storage consumed.
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With general availability of agentless multi-disk crashconsistent VM backup, you incur charges based on the size of the backed-up data, as [detailed here](https://azure.microsoft.com/pricing/details/backup/?msockid=229ace64ee9568201c64da31efc769d2). For each VM protected with agentless backup, a protected instance fee applies, similar to application-consistent VM backups. This fee depends on the *VM’s used size*, calculated as **50 percent** of its provisioned size.
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## Supported scenarios for agentless multi-disk crash-consistent VM backup (preview)
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## Supported scenarios for agentless multi-disk crash-consistent VM backup
Copy file name to clipboardExpand all lines: articles/backup/backup-azure-vms-agentless-multi-disk-crash-consistent.md
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title: Back up Azure VM with agentless multi-disk crash-consistent backup by using Azure Backup
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description: Learn how to configure backup for Azure VMs with agentless multi-disk crash-consistent backup via Azure portal.
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ms.topic: how-to
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ms.date: 06/11/2025
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ms.date: 07/30/2025
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author: AbhishekMallick-MS
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ms.author: v-mallicka
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# Customer intent: As an IT administrator managing Azure VMs, I want to configure agentless multi-disk crash-consistent backups, so that I can ensure robust data protection with minimal impact on performance.
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# Back up Azure VM with agentless multi-disk crash-consistent backup (preview)
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# Back up Azure VM with agentless multi-disk crash-consistent backup
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This article describes how to configure backup for Azure VMs with agentless multi-disk crash-consistent backup (preview) and back up VM by using the Azure portal.
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This article describes how to configure backup for Azure VMs with agentless multi-disk crash-consistent backup and back up VM by using the Azure portal.
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Azure Backup supports agentless VM backups by using multi-disk crash-consistent restore points (preview). The Enhanced VM backup policy now enables you to configure the consistency type of the backups (application-consistent restore points or crash-consistent restore points preview) for Azure VMs. This feature also enables Azure VM backup to retry the backup operation with *crash-consistent snapshots* (for *supported VMs*) if the application-consistent snapshot fails.
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Azure Backup supports agentless VM backups by using multi-disk crash-consistent restore points. The Enhanced VM backup policy now enables you to configure the consistency type of the backups (application-consistent restore points or crash-consistent restore points) for Azure VMs. This feature also enables Azure VM backup to retry the backup operation with *crash-consistent snapshots* (for *supported VMs*) if the application-consistent snapshot fails.
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>[!Note]
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>The agentless multi-disk crash consistent VM backup feature is generally available. This release includes changes to billing; see the [pricing details](backup-azure-vms-agentless-multi-disk-crash-consistent-overview.md#pricing-for-agentless-multi-disk-crash-consistent-backup).
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## Before you start
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1. On the **Configure backup** blade, under **Policy sub type**, select **Enhanced** > **Create a new policy**.
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2. On the **Create policy** blade, set the **Consistency type** to **Only crash consistent snapshot (Preview)** to enable *agentless crash consistent backup*.
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2. On the **Create policy** blade, set the **Consistency type** to **Only crash consistent snapshot** to enable *agentless crash consistent backup*.
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:::image type="content" source="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/configure-agentless-vm-backup-for-new-vm-with-new-policy.png" alt-text="Screenshot shows how to configure agentless crash-consistent backup for a new VM with a new backup policy." lightbox="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/configure-agentless-vm-backup-for-new-vm-with-new-policy.png":::
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:::image type="content" source="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/policy-settings.png" alt-text="Screenshot shows how to check associated items in a backup policy." lightbox="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/policy-settings.png":::
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>[!Note]
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>Ensure that the VMs are supported for crash-consistent backups. Learn about the [supported scenarios](backup-azure-vms-agentless-multi-disk-crash-consistent-overview.md#supported-scenarios-for-agentless-multi-disk-crash-consistent-vm-backup-preview).
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>Ensure that the VMs are supported for crash-consistent backups. Learn about the [supported scenarios](backup-azure-vms-agentless-multi-disk-crash-consistent-overview.md#supported-scenarios-for-agentless-multi-disk-crash-consistent-vm-backup).
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3. Go to the **Modify policy**, and then make a note of the settings in the policy to use the same in the new backup policy.
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:::image type="content" source="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/create-new-enhanced-backup-policy.png" alt-text="Screenshot shows creation of a new backup policy with the same backup frequency and retention rules." lightbox="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/create-new-enhanced-backup-policy.png":::
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7. Set the **Consistency type** to **Only crash consistent snapshot (Preview)**, and then select **Create**.
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7. Set the **Consistency type** to **Only crash consistent snapshot**, and then select **Create**.
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:::image type="content" source="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/set-crash-consistent-policy.png" alt-text="Screenshot shows how to set crash-consistent policy." lightbox="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/set-crash-consistent-policy.png":::
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:::image type="content" source="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/policy-settings.png" alt-text="Screenshot shows how to check the associated items in a backup policy." lightbox="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/policy-settings.png":::
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>[!Note]
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>Ensure that all the VMs in the policy are supported for crash-consistent backups. Learn about the [supported scenarios](backup-azure-vms-agentless-multi-disk-crash-consistent-overview.md#supported-scenarios-for-agentless-multi-disk-crash-consistent-vm-backup-preview).
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>Ensure that all the VMs in the policy are supported for crash-consistent backups. Learn about the [supported scenarios](backup-azure-vms-agentless-multi-disk-crash-consistent-overview.md#supported-scenarios-for-agentless-multi-disk-crash-consistent-vm-backup).
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>
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> :::image type="content" source="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/backup-policy-associated-items-edit.png" alt-text="Screenshot shows the list of VM associated with a backup policy." lightbox="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/backup-policy-associated-items-edit.png":::
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3. Go to the **Modify policy** blade, and set the **Consistency type** to **Only crash consistent snapshot (Preview)**, and then select **Update**.
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3. Go to the **Modify policy** blade, and set the **Consistency type** to **Only crash consistent snapshot**, and then select **Update**.
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:::image type="content" source="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/modify-policy-crash-consistent.png" alt-text="Screenshot shows how to check for the change in policy settings." lightbox="./media/backup-azure-vms-agentless-multi-disk-crash-consistent/modify-policy-crash-consistent.png":::
Copy file name to clipboardExpand all lines: articles/backup/backup-azure-vms-extended-zones.md
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title: Back up an Azure virtual machine with Azure extended zones portal
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description: In this article, learn how to back up an Azure virtual machine (VM) with the Azure Backup extended zones service.
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ms.topic: how-to
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ms.date: 09/27/2024
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author: ankitaduttaMSFT
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ms.author: ankitadutta
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ms.date: 07/24/2025
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author: AbhishekMallick-MS
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ms.author: v-mallicka
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# Customer intent: "As an IT administrator, I want to back up Azure virtual machines using the Azure portal, so that I can protect data and ensure high availability through enhanced resiliency in Azure Extended Zones."
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To apply a backup policy to your Azure VMs, follow these steps:
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1. Go to **Backup center** and select **+Backup** from the **Overview** tab.
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1. Go to **Business Continuity Center** and select **+ Configure protection**.
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:::image type="content" source="./media/backup-azure-arm-vms-prepare/backup-button.png" alt-text="Screenshot showing the Backup button." lightbox="./media/backup-azure-arm-vms-prepare/backup-button.png":::
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:::image type="content" source="./media/backup-azure-arm-vms-prepare/configure-protection.png" alt-text="Screenshot shows how to start configuring system backup." lightbox="./media/backup-azure-arm-vms-prepare/configure-protection.png":::
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1. On the **Start: Configure Backup**blade, select **Azure Virtual machines** as the**Datasource type**and select the vault you have created. Then select **Continue**.
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1. On the **Configure protection**pane, select **Resource managed by** as **Azure**,**Datasource type**as **Azure Virtual machines**, **Solution** as **Azure Backup**, and then select **Continue**.
:::image type="content" source="./media/backup-azure-arm-vms-prepare/configure-system-protection.png" alt-text="Screenshot shows how to set the system backup." lightbox="./media/backup-azure-arm-vms-prepare/configure-system-protection.png":::
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1. On the **Start: Configure Backup** pane, select **Azure Virtual machines** as the **Datasource type** and select the vault you have created. Then select **Continue**.
> You can configure backup for all VMs in the same region and subscription as the vault.
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## Monitor the backup job
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Monitor the portal notifications. To monitor the job progress, go to **Backup center**>**Backup Jobs** and filter the list for **In progress** jobs. Depending on the size of your VM, creating the initial backup may take a while.
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Monitor the portal notifications. To monitor the job progress, go to **Business Continuity Center**<**Monitoring + Reporting**> > **Jobs** and filter the list for **In progress** jobs. Depending on the size of your VM, creating the initial backup may take a while.
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The Backup job details for each VM backup consist of two phases, the **Snapshot** phase followed by the **Transfer data to vault** phase.
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- The snapshot phase ensures the availability of a recovery point stored along with the disks for **Instant Restores** and are available for a maximum of five days depending on the snapshot retention configured by the user.
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- Transfer data to vault creates a recovery point in the vault for long-term retention. This phase starts after the snapshot phase is completed.
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:::image type="content" source="./media/backup-azure-arm-vms-prepare/backup-job-status.png" alt-text="Screenshot showing the backup job status." lightbox="./media/backup-azure-arm-vms-prepare/backup-job-status.png":::
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:::image type="content" source="./media/backup-azure-arm-vms-prepare/backup-job-status.png" alt-text="Screenshot shows the backup job status." lightbox="./media/backup-azure-arm-vms-prepare/backup-job-status.png":::
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There are two **Sub Tasks** running at the backend, one for front-end backup job that can be checked from the **Backup Job** details blade as shown:
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There are two **Sub Tasks** running at the backend, one for front-end backup job that can be checked from the **Backup Job** details pane as shown:
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:::image type="content" source="./media/backup-azure-arm-vms-prepare/backup-job-phase.png" alt-text="Screenshot showing backup job status sub-tasks." lightbox="./media/backup-azure-arm-vms-prepare/backup-job-phase.png":::
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