Index: /trunk/src/VBox/Devices/Storage/DrvHostBase.cpp
===================================================================
--- /trunk/src/VBox/Devices/Storage/DrvHostBase.cpp	(revision 71806)
+++ /trunk/src/VBox/Devices/Storage/DrvHostBase.cpp	(revision 71807)
@@ -493,4 +493,10 @@
     *pfFeatures = pThis->IMediaEx.pfnIoReqSendScsiCmd ? PDMIMEDIAEX_FEATURE_F_RAWSCSICMD : 0;
     return VINF_SUCCESS;
+}
+
+/** @interface_method_impl{PDMIMEDIAEX,pfnNotifySuspend} */
+static DECLCALLBACK(void) drvHostBaseNotifySuspend(PPDMIMEDIAEX pInterface)
+{
+    RT_NOREF(pInterface); /* Nothing to do here. */
 }
 
@@ -1295,4 +1301,5 @@
     /* IMediaEx */
     pThis->IMediaEx.pfnQueryFeatures            = drvHostBaseQueryFeatures;
+    pThis->IMediaEx.pfnNotifySuspend            = drvHostBaseNotifySuspend;
     pThis->IMediaEx.pfnIoReqAllocSizeSet        = drvHostBaseIoReqAllocSizeSet;
     pThis->IMediaEx.pfnIoReqAlloc               = drvHostBaseIoReqAlloc;
Index: /trunk/src/VBox/Devices/Storage/DrvSCSI.cpp
===================================================================
--- /trunk/src/VBox/Devices/Storage/DrvSCSI.cpp	(revision 71806)
+++ /trunk/src/VBox/Devices/Storage/DrvSCSI.cpp	(revision 71807)
@@ -763,4 +763,12 @@
 }
 
+/** @interface_method_impl{PDMIMEDIAEX,pfnNotifySuspend} */
+static DECLCALLBACK(void) drvscsiNotifySuspend(PPDMIMEDIAEX pInterface)
+{
+    PDRVSCSI pThis = RT_FROM_MEMBER(pInterface, DRVSCSI, IMediaEx);
+
+    pThis->pDrvMediaEx->pfnNotifySuspend(pThis->pDrvMediaEx);
+}
+
 /** @interface_method_impl{PDMIMEDIAEX,pfnIoReqAllocSizeSet} */
 static DECLCALLBACK(int) drvscsiIoReqAllocSizeSet(PPDMIMEDIAEX pInterface, size_t cbIoReqAlloc)
@@ -1318,4 +1326,5 @@
     /* IMediaEx */
     pThis->IMediaEx.pfnQueryFeatures            = drvscsiQueryFeatures;
+    pThis->IMediaEx.pfnNotifySuspend            = drvscsiNotifySuspend;
     pThis->IMediaEx.pfnIoReqAllocSizeSet        = drvscsiIoReqAllocSizeSet;
     pThis->IMediaEx.pfnIoReqAlloc               = drvscsiIoReqAlloc;