add note for Azure Availbility Zone (#66200)

* add note for Azure Availbility Zone

* Change title

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

* Update docs/docsite/rst/scenario_guides/guide_azure.rst

Co-Authored-By: Sandra McCann <samccann@redhat.com>

Co-authored-by: Sandra McCann <samccann@redhat.com>

docs/docsite/rst/scenario_guides/guide_azure.rst

@@ -257,6 +257,30 @@ virtual network already with an existing subnet, you can run the following to cr
         version: latest
 
 
+Creating a Virtual Machine in Availability Zones
+..................................................
+
+If you want to create a VM in an availability zone,
+consider the following:
+
+* Both OS disk and data disk must be a 'managed disk', not an 'unmanaged disk'.
+* When creating a VM with the ``azure_rm_virtualmachine`` module,
+  you need to explicitly set the ``managed_disk_type`` parameter
+  to change the OS disk to a managed disk.
+  Otherwise, the OS disk becomes  an unmanaged disk..
+* When you create a data disk with  the ``azure_rm_manageddisk`` module,
+  you need to  explicitly specify the  ``storage_account_type`` parameter
+  to make it a  managed disk.
+  Otherwise, the data disk will be an unmanaged disk.
+* A managed disk does not require a storage account or a storage container,
+  unlike  a n unmanaged disk.
+  In particular, note that once a VM is created on an unmanaged disk,
+  an unnecessary storage container named "vhds" is automatically created.
+* When you create an IP address with the ``azure_rm_publicipaddress`` module,
+  you must set the  ``sku`` parameter to ``standard``.
+  Otherwise, the IP address cannot be used in an availability zone.
+
+
 Dynamic Inventory Script
 ------------------------