Merge pull request #87178 from openshift-cherrypick-robot/cherry-pick-84930-to-enterprise-4.18

[enterprise-4.18] CNV#43386: vm disks and the CSI paradigm overview and diagram

Author: ShaunaDiaz

_topic_maps/_topic_map.yml

@@ -4682,6 +4682,8 @@ Topics:
     File: virt-using-preallocation-for-datavolumes
   - Name: Managing data volume annotations
     File: virt-managing-data-volume-annotations
+  - Name: Understanding virtual machine storage with the CSI paradigm
+    File: virt-storage-with-csi-paradigm
 # Virtual machine live migration
 - Name: Live migration
   Dir: live_migration

images/virt-storage-csi-paradigm.png

@@ -0,0 +1,11 @@
+// Module included in the following assemblies:
+//
+// * virt/storage/virt-storage-with-csi-paradigm.adoc
+
+:_mod-docs-content-type: PROCEDURE
+[id="virt-storage-vp-csi-overview_{context}"]
+= Virtual machine CSI storage overview
+
+{VirtProductName} integrates with the Container Storage Interface (CSI) to manage VM storage. Storage classes define storage capabilities such as performance tiers and types. PersistentVolumeClaims (PVCs) request storage resources, which bind to PersistentVolumes (PVs). CSI drivers connect Kubernetes to vendor storage backends, including iSCSI, NFS, and Fibre Channel.
+
+image:virt-storage-csi-paradigm.png[title="Virtual machine disks and the CSI paradigm"]

modules/virt-storage-pv-csi-overview.adoc

@@ -0,0 +1,11 @@
+:_mod-docs-content-type: ASSEMBLY
+[id="virt-storage-with-csi-paradigm"]
+= Understanding virtual machine storage with the CSI paradigm
+include::_attributes/common-attributes.adoc[]
+:context: virt-storage-with-csi-paradigm
+
+toc::[]
+
+Virtual machines (VMs) in {VirtProductName} use PersistentVolume (PV) and PersistentVolumeClaim (PVC) paradigms to manage storage. This ensures seamless integration with the Container Storage Interface (CSI).
+
+include::modules/virt-storage-pv-csi-overview.adoc[leveloffset=+1]