diff --git a/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/index.vue b/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/index.vue
index 22be4c10ef3..b507c8c1231 100644
--- a/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/index.vue
+++ b/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/index.vue
@@ -8,7 +8,7 @@ import { LabeledInput } from '@components/Form/LabeledInput';
 import LabeledSelect from '@shell/components/form/LabeledSelect';
 import ModalWithCard from '@shell/components/ModalWithCard';
 
-import { PVC, STORAGE_CLASS } from '@shell/config/types';
+import { PVC } from '@shell/config/types';
 import { HCI } from '../../../types';
 import { clone } from '@shell/utils/object';
 import { removeObject } from '@shell/utils/array';
@@ -172,10 +172,7 @@ export default {
       };
 
       if (type === SOURCE_TYPE.NEW) {
-        const inStore = this.$store.getters['currentProduct'].inStore;
-        const defaultStorage = this.$store.getters[`${ inStore }/all`](STORAGE_CLASS).find( O => O.isDefault);
-
-        neu.storageClassName = defaultStorage?.metadata?.name || 'longhorn';
+        neu.storageClassName = this.defaultStorageClass?.metadata?.name || 'longhorn';
       }
 
       this.rows.push(neu);
diff --git a/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/type/volume.vue b/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/type/volume.vue
index 68a1404dace..5e86127a910 100644
--- a/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/type/volume.vue
+++ b/pkg/harvester/edit/kubevirt.io.virtualmachine/VirtualMachineVolume/type/volume.vue
@@ -11,6 +11,8 @@ import { VOLUME_TYPE, InterfaceOption } from '../../../../config/harvester-map';
 import { _VIEW } from '@shell/config/query-params';
 import LabelValue from '@shell/components/LabelValue';
 import { ucFirst } from '@shell/utils/string';
+import { LVM_DRIVER } from '../../../../models/harvester/storage.k8s.io.storageclass';
+import { DATA_ENGINE_V2 } from '../../../../edit/harvesterhci.io.storage/index.vue';
 
 export default {
   name:       'HarvesterEditVolume',
@@ -85,10 +87,12 @@ export default {
       return !this.value.newCreateId && this.isEdit && this.isVirtualType;
     },
 
-    storageClassOptions() {
-      const storages = this.$store.getters[`harvester/all`](STORAGE_CLASS) || [];
+    storageClasses() {
+      return this.$store.getters[`harvester/all`](STORAGE_CLASS) || [];
+    },
 
-      const out = storages.filter(s => !s.parameters?.backingImage).map((s) => {
+    storageClassOptions() {
+      return this.storageClasses.filter(s => !s.parameters?.backingImage).map((s) => {
         const label = s.isDefault ? `${ s.name } (${ this.t('generic.default') })` : s.name;
 
         return {
@@ -96,12 +100,21 @@ export default {
           value: s.name,
         };
       }) || [];
-
-      return out;
     },
   },
 
   watch: {
+    'value.storageClassName': {
+      immediate: true,
+      handler(neu) {
+        const storageClass = this.storageClasses.find(sc => sc.name === neu);
+        const provisioner = storageClass?.provisioner;
+        const engine = storageClass?.parameters?.dataEngine;
+
+        this.value.accessMode = provisioner === LVM_DRIVER || engine === DATA_ENGINE_V2 ? 'ReadWriteOnce' : 'ReadWriteMany';
+      }
+    },
+
     'value.type'(neu) {
       if (neu === 'cd-rom') {
         this.$set(this.value, 'bus', 'sata');
diff --git a/pkg/harvester/mixins/harvester-vm/index.js b/pkg/harvester/mixins/harvester-vm/index.js
index bc49bf410a1..7793258ac0b 100644
--- a/pkg/harvester/mixins/harvester-vm/index.js
+++ b/pkg/harvester/mixins/harvester-vm/index.js
@@ -25,6 +25,9 @@ import { HCI as HCI_ANNOTATIONS } from '@pkg/harvester/config/labels-annotations
 import impl, { QGA_JSON, USB_TABLET } from './impl';
 import { uniq } from '@shell/utils/array';
 import { parseVolumeClaimTemplates } from '../../utils/vm';
+import { LONGHORN_VERSION_V1, LONGHORN_VERSION_V2 } from '@shell/models/persistentvolume';
+
+const LONGHORN_V2_DATA_ENGINE = 'longhorn-system/v2-data-engine';
 
 export const MANAGEMENT_NETWORK = 'management Network';
 
@@ -100,6 +103,7 @@ export default {
       vms:               this.$store.dispatch(`${ inStore }/findAll`, { type: HCI.VM }),
       secrets:           this.$store.dispatch(`${ inStore }/findAll`, { type: SECRET }),
       addons:            this.$store.dispatch(`${ inStore }/findAll`, { type: HCI.ADD_ONS }),
+      longhornV2Engine:  this.$store.dispatch(`${ inStore }/find`, { type: LONGHORN.SETTINGS, id: LONGHORN_V2_DATA_ENGINE }),
     };
 
     if (this.$store.getters[`${ inStore }/schemaFor`](NODE)) {
@@ -241,7 +245,7 @@ export default {
     defaultStorageClass() {
       const defaultStorage = this.$store.getters[`${ this.inStore }/all`](STORAGE_CLASS).find( O => O.isDefault);
 
-      return defaultStorage?.metadata?.name || 'longhorn';
+      return defaultStorage;
     },
 
     storageClassSetting() {
@@ -254,6 +258,12 @@ export default {
       }
     },
 
+    longhornSystemVersion() {
+      const v2DataEngine = this.$store.getters[`${ this.inStore }/byId`](LONGHORN.SETTINGS, LONGHORN_V2_DATA_ENGINE) || {};
+
+      return v2DataEngine.value === 'true' ? LONGHORN_VERSION_V2 : LONGHORN_VERSION_V1;
+    },
+
     customVolumeMode() {
       return this.storageClassSetting.volumeMode || 'Block';
     },
@@ -445,7 +455,7 @@ export default {
           id:               randomStr(5),
           source:           SOURCE_TYPE.IMAGE,
           name:             'disk-0',
-          accessMode:       'ReadWriteMany',
+          accessMode:       this.longhornSystemVersion === LONGHORN_VERSION_V2 ? 'ReadWriteOnce' : 'ReadWriteMany',
           bus,
           volumeName:       '',
           size,