Fix for bug 1818487

Author: avirupch

src/ServiceManagement/StorSimple/Commands.StorSimple/Cmdlets/Failover/StartAzureStorSimpleDeviceFailoverJob.cs

@@ -87,12 +87,19 @@ public override void ExecuteCmdlet()
                                 break;
                         }
 
-                        if (String.IsNullOrEmpty(deviceId) || string.IsNullOrEmpty(targetDeviceId))
+                        if (string.IsNullOrEmpty(deviceId) || string.IsNullOrEmpty(targetDeviceId))
                         {
                             WriteObject(null);
                             return;
                         }
 
+                        if(deviceId.Equals(targetDeviceId, StringComparison.InvariantCultureIgnoreCase))
+                        {
+                            WriteVerbose(Resources.DeviceFailoverSourceAndTargetDeviceSameError);
+                            WriteObject(null);
+                            return;
+                        }
+
                         var vcIdList = StorSimpleClient.GetVcIdListFromVcGroups(VolumecontainerGroups);
 
                         var drRequest = new DeviceFailoverRequest()

src/ServiceManagement/StorSimple/Commands.StorSimple/Properties/Resources.Designer.cs

@@ -444,4 +444,7 @@
   <data name="StartASSBackupCloneJobWarningMessage" xml:space="preserve">
     <value>Are you sure you want to clone the backup with backupId {0}?</value>
   </data>
+  <data name="DeviceFailoverSourceAndTargetDeviceSameError" xml:space="preserve">
+    <value>Source and Target device in a failover operation can not be the same.</value>
+  </data>
 </root>