Add a note about NFS shares

Author: RenaShahMSFT

articles/storage/common/redundancy-migration.md

@@ -34,7 +34,7 @@ The following table provides an overview of how to switch from each type of repl
 
 | Switching | …to LRS | …to GRS/RA-GRS | …to ZRS | …to GZRS/RA-GZRS |
 |--------------------|----------------------------------------------------|---------------------------------------------------------------------|----------------------------------------------------|---------------------------------------------------------------------|
-| <b>…from LRS</b> | N/A | Use Azure portal, PowerShell, or CLI to change the replication setting<sup>1,2</sup> | Perform a manual migration <br /><br /> OR <br /><br /> Request a live migration | Perform a manual migration <br /><br /> OR <br /><br /> Switch to GRS/RA-GRS first and then request a live migration<sup>3</sup> |
+| <b>…from LRS</b> | N/A | Use Azure portal, PowerShell, or CLI to change the replication setting<sup>1,2</sup> | Perform a manual migration <br /><br /> OR <br /><br /> Request a live migration<sup>5</sup> | Perform a manual migration <br /><br /> OR <br /><br /> Switch to GRS/RA-GRS first and then request a live migration<sup>3</sup> |
 | <b>…from GRS/RA-GRS</b> | Use Azure portal, PowerShell, or CLI to change the replication setting | N/A | Perform a manual migration <br /><br /> OR <br /><br /> Switch to LRS first and then request a live migration<sup>3</sup> | Perform a manual migration <br /><br /> OR <br /><br /> Request a live migration<sup>3</sup> |
 | <b>…from ZRS</b> | Perform a manual migration | Perform a manual migration | N/A | Request a live migration<sup>3</sup> <br /><br /> OR <br /><br /> Use PowerShell or Azure CLI to change the replication setting as part of a failback operation only<sup>4</sup> |
 | <b>…from GZRS/RA-GZRS</b> | Perform a manual migration | Perform a manual migration | Use Azure portal, PowerShell, or CLI to change the replication setting | N/A |
@@ -43,6 +43,7 @@ The following table provides an overview of how to switch from each type of repl
 <sup>2</sup> Migrating from LRS to GRS is not supported if the storage account contains blobs in the archive tier.<br />
 <sup>3</sup> Live migration is supported for standard general-purpose v2 and premium file share storage accounts. Live migration is not supported for premium block blob or page blob storage accounts.<br />
 <sup>4</sup> After an account failover to the secondary region, it's possible to initiate a fail back from the new primary back to the new secondary with PowerShell or Azure CLI (version 2.30.0 or later). For more information, see [Use caution when failing back to the original primary](storage-disaster-recovery-guidance.md#use-caution-when-failing-back-to-the-original-primary). <br />
+<sup>5</sup> NFS shares in Azure Files do not support LRS to ZRS migration <br />
 
 > [!CAUTION]
 > If you performed an [account failover](storage-disaster-recovery-guidance.md) for your (RA-)GRS or (RA-)GZRS account, the account is locally redundant (LRS) in the new primary region after the failover. Live migration to ZRS or GZRS for an LRS account resulting from a failover is not supported. This is true even in the case of so-called failback operations. For example, if you perform an account failover from RA-GZRS to the LRS in the secondary region, and then configure it again to RA-GRS and perform another account failover to the original primary region, you can't contact support for the original live migration to RA-GZRS in the primary region. Instead, you'll need to perform a manual migration to ZRS or GZRS.