refactor into the storage article

Author: ggailey777

articles/azure-functions/storage-considerations.md

@@ -87,6 +87,10 @@ To limit the potential impact of any broadly scoped storage permissions, conside
 
 [!INCLUDE [functions-shared-storage](../../includes/functions-shared-storage.md)]
 
+### Consistent routing through virtual networks
+
+Multiple function apps hosted in the same plan can also use the same storage account for the Azure Files content share (defined by `WEBSITE_CONTENTAZUREFILECONNECTIONSTRING`). When this storage account is also secured by a virtual network, all of these apps should also use the same value for `vnetContentShareEnabled` (formerly `WEBSITE_CONTENTOVERVNET`) to guarantee that traffic is routed consistently through the intended virtual network. A mismatch in this setting between apps using the same Azure Files storage account might result in traffic being routed through public networks, which causes access to be blocked by storage account network rules.
+
 ## Working with blobs 
 
 A key scenario for Functions is file processing of files in a blob container, such as for image processing or sentiment analysis. To learn more, see [Process file uploads](./functions-scenarios.md#process-file-uploads). 

includes/functions-content-over-vnet-shared-storage-note.md

@@ -7,4 +7,4 @@ ms.author: glenga
 ---
 
 > [!NOTE]
-> Multiple function apps hosted in the same plan can also use the same storage account for the content share (defined by `WEBSITE_CONTENTAZUREFILECONNECTIONSTRING` and `WEBSITE_CONTENTSHARE`). In such a scenario, all of these apps should also use the same value for `vnetContentShareEnabled` (formerly `WEBSITE_CONTENTOVERVNET`) to guarantee that traffic is consistently routed through the intended network. A mismatch in this setting between apps using the same content share might result in traffic being routed through public networks, which causes access to be blocked by storage account network rules.
+> You must take special care when routing to the content share in a storage account shared by multiple function apps in the same plan. For more information, see [Consistent routing through virtual networks](../articles/azure-functions/storage-considerations.md#consistent-routing-through-virtual-networks) in the Storage considerations article.