CNV-15055: Enhance Advanced storage settings section

Author: Bob Gaydos

modules/virt-storage-wizard-fields-web.adoc

@@ -48,34 +48,42 @@
 |Storage Class
 |
 |The storage class that is used to create the disk.
-
-a|Advanced -> Volume Mode
-[NOTE]
-====
-Default values are used from the storage profile.
-====
-|
-|Defines whether the persistent volume uses a formatted file system or raw block state. Default is *Filesystem*.
 |===
 
 [id="virt-storage-wizard-fields-advanced-web_{context}"]
 [discrete]
 == Advanced storage settings
 
-[cols="5a,3a,5a"]
-|===
-|Name | Parameter |  Description
+The following advanced storage settings are optional and available for *Blank*, *Import via URL*, and *Clone existing PVC* disks.  Before {VirtProductName} 4.11, if you do not specify these parameters, the system uses the default values from the `kubevirt-storage-class-defaults` config map. In {VirtProductName} 4.11 and later, the system uses the default values from the xref:../../virt/virtual_machines/virtual_disks/virt-creating-data-volumes.adoc#virt-customizing-storage-profile_virt-creating-data-volumes[storage profile].
 
-.2+|Volume Mode
 [NOTE]
 ====
-Default values are used from the storage profile.
+Use storage profiles to ensure consistent advanced storage settings when provisioning storage for {VirtProductName}.
+
+To manually specify *Volume Mode* and *Access Mode*, you must clear the *Apply optimized StorageProfile settings* checkbox, which is selected by default.
 ====
+
+[cols="5a,3a,3a,5a",options="header"]
+|===
+|Name |Mode description |Parameter |Parameter description
+
+.2+|Volume Mode
+
+.2+|Defines whether the persistent volume uses a formatted file system or raw block state. Default is *Filesystem*.
 |Filesystem
 |Stores the virtual disk on a file system-based volume.
-
 |Block
 |Stores the virtual disk directly on the block volume. Only use `Block` if the underlying storage supports it.
-|Read Only (ROX)
-|The disk can be mounted as read-only by many nodes.
+.3+|Access Mode
+.3+|Access mode of the persistent volume.
+|ReadWriteOnce (RWO)
+|Volume can be mounted as read-write by a single node.
+|ReadWriteMany (RWX)
+|Volume can be mounted as read-write by many nodes at one time.
+[NOTE]
+====
+This is required for some features, such as live migration of virtual machines between nodes.
+====
+|ReadOnlyMany (ROX)
+|Volume can be mounted as read only by many nodes.
 |===