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Copy file name to clipboardExpand all lines: articles/azure-netapp-files/replication.md
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@@ -43,20 +43,24 @@ For a list of regions that currently support availability zones, see [Azure regi
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In many cases resiliency across availability zones is achieved by high-availability (HA) architectures using application-based replication and HA. Simpler, more cost-effective approaches are often considered by using storage-based data replication instead.
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Similar to the Azure NetApp Files [cross-region replication feature](replication.md), the cross-zone replication (CZR) capability provides data protection between volumes in different availability zones. You can asynchronously replicate data from an Azure NetApp Files volume (source) in one availability zone to another Azure NetApp Files volume (destination) in another availability zone. This capability enables you to fail over your critical application if a zone-wide outage or disaster happens.
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Similar to Azure NetApp Files [cross-region replication](#cross-region-replication), cross-zone replication (CZR) provides data protection between volumes in different availability zones. You can asynchronously replicate data from an Azure NetApp Files volume (source) in one availability zone to another Azure NetApp Files volume (destination) in another availability zone. This capability enables you to fail over your critical application if a zone-wide outage or disaster happens.
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Cross-zone replication is available in all [availability zone-enabled regions](../reliability/availability-zones-region-support.md) with [Azure NetApp Files presence](https://azure.microsoft.com/explore/global-infrastructure/products-by-region/?products=netapp®ions=all&rar=true).
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For service level objects, see [Azure NetApp Files reliability](../reliability/reliability-netapp-files.md#region-down-experience).
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### Cost model for cross-zone replication
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Replicated volumes are hosted on a [capacity pool](azure-netapp-files-understand-storage-hierarchy.md#capacity_pools). As such, the cost for cross-zone replication is based on the provisioned capacity pool size and tier as normal. There is no additional cost for data replication.
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## Cross-region replication
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The Azure NetApp Files replication functionality provides data protection through cross-region volume replication. You can asynchronously replicate data from an Azure NetApp Files volume (source) in one region to another Azure NetApp Files volume (destination) in another region. This capability enables you to fail over your critical application if a region-wide outage or disaster happens.
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Azure NetApp Files replication is available across regions. You can asynchronously replicate data from an Azure NetApp Files volume (source) in one region to another Azure NetApp Files volume (destination) in another region. This capability enables you to fail over your critical application if a region-wide outage or disaster happens.
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Azure NetApp Files cross-region replication must adhere to [supported regional pairs](#supported-region-pairs).
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For service level objects, see [Azure NetApp Files reliability](../reliability/reliability-netapp-files.md#region-down-experience).
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### Cost model for cross-region replication
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With Azure NetApp Files cross-region replication, you pay only for the amount of data you replicate. There's no setup charge or minimum usage fee. The replication price is based on the replication frequency and the region of the *destination* volume you choose during the initial replication configuration. For more information, see the [Azure NetApp Files Pricing](https://azure.microsoft.com/pricing/details/netapp/) page.
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:::image type="content" source="./media/cross-zone-region-introduction/zone-region.png" alt-text="Diagram of cross-zone and cross-region replication." lightbox="./media/cross-zone-region-introduction/zone-region.png":::
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:::image type="content" source="./media/reliability/zone-region.png" alt-text="Diagram of cross-zone and cross-region replication." lightbox="./media/reliability/zone-region.png":::
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* Two cross-region replication target volumes
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:::image type="content" source="./media/cross-zone-region-introduction/double-region.png" alt-text="Diagram of double cross-region replication." lightbox="./media/cross-zone-region-introduction/double-region.png":::
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:::image type="content" source="./media/reliability/double-region.png" alt-text="Diagram of double cross-region replication." lightbox="./media/reliability/double-region.png":::
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* Two cross-zone replication target volumes in any combination of availability zones, including in-zone replication
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:::image type="content" source="./media/cross-zone-region-introduction/double-zone.png" alt-text="Diagram of double cross-zone replication." lightbox="./media/cross-zone-region-introduction/double-zone.png":::
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:::image type="content" source="./media/reliability/double-zone.png" alt-text="Diagram of double cross-zone replication." lightbox="./media/reliability/double-zone.png":::
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### Requirements for cross-zone-region replication
Copy file name to clipboardExpand all lines: articles/reliability/reliability-netapp-files.md
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Azure NetApp Files is a native, enterprise-grade file storage solution that's integrated seamlessly within Azure, enabling file sharing across clients via SMB and NFS protocols. Designed for high performance, Azure NetApp Files offers scalable and secure file storage that's managed as a service.
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To use Azure NetApp Files, you create *volumes* within a NetApp account, as well as *capacity pools*. You can configure capacity and throughput independently, and manage data protection options tailored to various needs. You can enable replication between volumes, even if they're in different locations.
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To use Azure NetApp Files, you must configure a NetApp account which contain *capacity pools* that in turn host *volumes*. You can configure capacity and throughput independently, and manage data protection options tailored to various needs. You can enable replication between volumes, even if they're in different locations.
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## Production deployment recommendations
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[!INCLUDE [AZ support description](includes/reliability-availability-zone-description-include.md)]
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Azure NetApp Files supports *zonal* deployments of volumes. [Azure NetApp Files' availability zone volume placement feature](../azure-netapp-files/use-availability-zones.md) lets you deploy each volume in a single availability zone of your choice, as long as Azure NetApp Files is present in that availability zone and has sufficient capacity. If you have latency-sensitive applications, you can deploy a volume to the same availability zone as your Azure compute resources and other services in the same zone.
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Azure NetApp Files supports *zonal* deployments of volumes. [Azure NetApp Files' availability zone volume placement feature](../azure-netapp-files/replication.md#availablity-zones) lets you deploy each volume in a single availability zone of your choice, as long as Azure NetApp Files is present in that availability zone and has sufficient capacity. If you have latency-sensitive applications, you can deploy a volume to the same availability zone as your Azure compute resources and other services in the same zone.
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In the diagram below, all virtual machines (VMs) within the region in (peered) VNets can access all Azure NetApp Files resources (blue arrows). VMs accessing Azure NetApp Files volumes in the same zone (green arrows) share the availability zone failure domain. Note there's no replication between the different volumes at the platform level.
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## Multi-region support
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Azure NetApp Files is a single-region service. If the region becomes unavailable, volumes stored in that region are also unavailable.
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However, Azure NetApp Files provides data protection through cross-region volume replication. You can asynchronously replicate data from an Azure NetApp Files volume (source) in one region to another Azure NetApp Files volume (destination) in another region preselected by Microsoft. This capability enables you to fail over your critical application if a region-wide outage or disaster happens.
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By default, Azure NetApp Files is a single region service. To improve resiliency in the event of a regional outage, Azure NetApp Files supports cross-region replication. You can asynchronously replicate data from an Azure NetApp Files volume (source) in one region to another Azure NetApp Files volume (destination) in another region preselected by Microsoft. This capability enables you to fail over your critical application if a region-wide outage or disaster happens.
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> [!NOTE]
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> You can also replicate a single volume to another availability zone *and* to another region. To learn more, see [Understand cross-zone-region replication in Azure NetApp Files](../azure-netapp-files/cross-zone-region-replication.md).
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