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Copy file name to clipboardExpand all lines: articles/storage/common/redundancy-migration.md
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@@ -53,7 +53,7 @@ The following table provides an overview of how to switch from each type of repl
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|**…from ZRS**|[Perform a conversion](#perform-a-conversion)<sup>3</sup> |[Switch to GZRS/RA-GZRS first](#change-the-replication-setting-using-the-portal-powershell-or-the-cli)<sup>1</sup>, then [perform a conversion](#perform-a-conversion) to GRS/RA-GRS<sup>3</sup> |**N/A**|[Use Azure portal, PowerShell, or CLI](#change-the-replication-setting-using-the-portal-powershell-or-the-cli) <sup>1</sup> |
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|**…from GZRS/RA-GZRS**|[Switch to ZRS first](#change-the-replication-setting-using-the-portal-powershell-or-the-cli), then [perform a conversion](#perform-a-conversion) to LRS <sup>3</sup> |[Perform a conversion](#perform-a-conversion)<sup>3</sup> |[Use Azure portal, PowerShell, or CLI](#change-the-replication-setting-using-the-portal-powershell-or-the-cli)|**N/A**|
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<sup>1</sup> Adding geo-redundancy incurs a one-time egress charge.<br />
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<sup>1</sup> [Adding geo-redundancy incurs a one-time egress charge](#costs-associated-with-changing-how-data-is-replicated).<br />
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<sup>2</sup> If your storage account contains blobs in the archive tier, review the [access tier limitations](#access-tier) before changing the redundancy type to geo- or zone-redundant.<br />
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<sup>3</sup> The type of conversion supported depends on the storage account type. See [the storage account table](#storage-account-type) for more details.<br />
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<sup>4</sup> Conversion to ZRS or GZRS for an LRS account resulting from a failover is not supported. For more details see [Failover and failback](#failover-and-failback).<br />
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Ordering from the least to the most expensive, Azure Storage redundancy offerings include LRS, ZRS, GRS, RA-GRS, GZRS, and RA-GZRS.
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The costs associated with changing how data is replicated in your storage account depend on which [aspects of your redundancy configuration](#options-for-changing-the-replication-type) you change.
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The costs associated with changing how data is replicated in your storage account depend on which [aspects of your redundancy configuration](#options-for-changing-the-replication-type) you change, and are generally based on data storage and egress bandwidth pricing. For details on pricing, see [Azure Storage Pricing page](https://azure.microsoft.com/pricing/details/storage/blobs/).
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If you add zone-redundancy in the primary region, there is no initial cost associated with making that conversion, but the ongoing data storage cost will be higher due to the additional replication and storage space required.
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If you add geo-redundancy, you will incur an egress bandwidth charge at the time of the change because your entire storage account is being replicated to the secondary region. All subsequent writes to the primary region also incur egress bandwidth charges to replicate the write to the secondary region. For details on bandwidth charges, see [Azure Storage Pricing page](https://azure.microsoft.com/pricing/details/storage/blobs/).
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If you add geo-redundancy, you will incur an egress bandwidth charge at the time of the change because your entire storage account is being replicated to the secondary region. All subsequent writes to the primary region also incur egress bandwidth charges to replicate the write to the secondary region.
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If you remove geo-redundancy (change from GRS to LRS), there is no cost for making the change, but your replicated data is deleted from the secondary location.
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