Merge pull request #270021 from suzuber/suzuber/update-azure-elastic-san

Update configure-azure-elastic-san.md

Author: American-Dipper

articles/azure-vmware/configure-azure-elastic-san.md

@@ -1,10 +1,10 @@
 ---
 title: Use Azure VMware Solution with Azure Elastic SAN
-description: Learn how to use Elastic SAN  with Azure VMware Solution
+description: Learn how to use Elastic SAN  with Azure VMware Solution.
 ms.topic: how-to
 ms.service: azure-vmware
 ms.author: v-suzuber
-ms.date: 12/22/2023
+ms.date: 3/22/2024
 ms.custom: references_regions, engagement-fy23
 ---
 
@@ -19,25 +19,27 @@ Azure Elastic storage area network (SAN) addresses the problem of workload optim
 The following prerequisites are required to continue.
 
 - Register for the preview by filling out the [form](https://forms.office.com/Pages/ResponsePage.aspx?id=v4j5cvGGr0GRqy180BHbR8FVh9RJVPdOk_mdTpp--pZUN0RKUklROEc4UE1RRFpRMkhNVFAySTM1TC4u).
-- Verify you have a Dev/Test private cloud set up in one of the following regions:
-	- East US
-	- East US 2
-	- South Central US
-	- West US 2
-	- West US 3
-	- North Europe
-	- West Europe
-	- UK South
-	- France Central
-	- Sweden Central
-	- Southeast Asia
-	- Australia East
+- Verify you have a Dev/Test private cloud in a [region that Elastic SAN is available in](../storage/elastic-san/elastic-san-create.md).
 - Know the availability zone your private cloud is in. 
 	- In the UI, select an Azure VMware Solution host.
 	> [!NOTE]
 	> The host exposes its Availability Zone. You should use that AZ when deploying other Azure resources for the same subscription.
 - You have permission to set up new resources in the subscription your private cloud is in.
-- Verify that you received an email confirmation that your subscription is now allowlisted.
+
+## Set preview feature flags
+
+To use ElasticSAN with Azure VMware Solution, you need to set three feature flags on your subscription:
+
+- earlyAccess
+- iSCSIMultipath
+- ElasticSanDatastore
+
+Setting a feature flag can be done in the subscription overview page in the Azure portal. 
+
+1. Under the **Settings** section, select **Preview features**.
+1. On the **Preview features** page, use the search bar to find the feature flags you need to register. Once found, select the feature flag you want to register and select **Register** at the top.
+1. Verify the **State** of the feature is changed to **Registered** with a green checkmark.
+
 
 ## Set up Elastic SAN
 
@@ -54,12 +56,14 @@ In this section, you create a virtual network for your Elastic SAN. Then you cre
 	- [PowerShell](/azure/storage/elastic-san/elastic-san-create?tabs=azure-powershell)
 	- [Azure CLI](/azure/storage/elastic-san/elastic-san-create?tabs=azure-cli)
 1. Use one of the following instructions to configure a Private Endpoint (PE) for your Elastic SAN:
+	> [!IMPORTANT]
+	> You must have a Private Endpoint set up for your dedicated volume group to be able to connect your SDDC to the Elastic SAN.
 	- [PowerShell](/azure/storage/elastic-san/elastic-san-networking?tabs=azure-powershell#configure-a-private-endpoint)
 	- [Azure CLI](/azure/storage/elastic-san/elastic-san-networking?tabs=azure-cli#tabpanel_2_azure-cli)
 
 ## Add an Elastic SAN volume as a datastore
 
-After you receive confirmation that your subscription is allowlisted, you can use the Azure portal to add the Elastic SAN volume as a datastore in your private cloud. Use the following steps to add, connect, disconnect, and delete Elastic SAN.
+Once all three feature flags (earlyAccess, iSCSIMultipath, ElasticSanDatastore) are set on your subscription, you can use the Azure portal to add the Elastic SAN volume as a datastore in your private cloud. Use the steps in [configure external storage address block](#configure-external-storage-address-block) to add, connect, disconnect, and delete Elastic SAN. 
 
 ## Configure external storage address block
 
@@ -76,6 +80,10 @@ After you provide an External storage address block, you can connect to an Elast
 
 ## Connect Elastic SAN
 
+First, you need to connect your SDDC express route with the private endpoint you set up for your Elastic SAN volume group. Instructions on how to establish this connection can be found in the Tutorial, [Configure networking for your VMware private cloud in Azure](../azure-vmware/tutorial-configure-networking.md). 
+
+Once your SDDC express route is connected with the private endpoint for your Elastic SAN volume group, use the following steps to connect the volume to your SDDC: 
+
 1. From the left navigation in your Azure VMware Solution private cloud, select **Storage**, then **+ Connect Elastic SAN**.
 1. Select your **Subscription**, **Resource**, **Volume Group**, **Volume(s)**, and **Client cluster**.
 1. From section, "Rename datastore as per VMware requirements", under **Volume name** > **Data store name**, give names to the Elastic SAN volumes.