diff --git a/services/secondary-storage/src/org/apache/cloudstack/storage/resource/NfsSecondaryStorageResource.java b/services/secondary-storage/src/org/apache/cloudstack/storage/resource/NfsSecondaryStorageResource.java
index bd2378cd633..d41b87bd59c 100755
--- a/services/secondary-storage/src/org/apache/cloudstack/storage/resource/NfsSecondaryStorageResource.java
+++ b/services/secondary-storage/src/org/apache/cloudstack/storage/resource/NfsSecondaryStorageResource.java
@@ -16,15 +16,23 @@
 // under the License.
 package org.apache.cloudstack.storage.resource;
 
-import static com.cloud.utils.S3Utils.putFile;
 import static com.cloud.utils.S3Utils.mputFile;
+import static com.cloud.utils.S3Utils.putFile;
 import static com.cloud.utils.StringUtils.join;
 import static com.cloud.utils.db.GlobalLock.executeWithNoWaitLock;
 import static java.lang.String.format;
 import static java.util.Arrays.asList;
 import static org.apache.commons.lang.StringUtils.substringAfterLast;
 
-import java.io.*;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
 import java.math.BigInteger;
 import java.net.InetAddress;
 import java.net.URI;
@@ -39,10 +47,6 @@ import java.util.concurrent.Callable;
 
 import javax.naming.ConfigurationException;
 
-import com.cloud.agent.api.storage.*;
-import com.cloud.storage.VMTemplateStorageResourceAssoc;
-import com.cloud.storage.template.*;
-import com.cloud.utils.SwiftUtil;
 import org.apache.cloudstack.storage.command.CopyCmdAnswer;
 import org.apache.cloudstack.storage.command.CopyCommand;
 import org.apache.cloudstack.storage.command.DeleteCommand;
@@ -86,6 +90,14 @@ import com.cloud.agent.api.SecStorageSetupCommand.Certificates;
 import com.cloud.agent.api.SecStorageVMSetupCommand;
 import com.cloud.agent.api.StartupCommand;
 import com.cloud.agent.api.StartupSecondaryStorageCommand;
+import com.cloud.agent.api.storage.CreateEntityDownloadURLCommand;
+import com.cloud.agent.api.storage.DeleteEntityDownloadURLCommand;
+import com.cloud.agent.api.storage.DownloadAnswer;
+import com.cloud.agent.api.storage.ListTemplateAnswer;
+import com.cloud.agent.api.storage.ListTemplateCommand;
+import com.cloud.agent.api.storage.ListVolumeAnswer;
+import com.cloud.agent.api.storage.ListVolumeCommand;
+import com.cloud.agent.api.storage.UploadCommand;
 import com.cloud.agent.api.to.DataObjectType;
 import com.cloud.agent.api.to.DataStoreTO;
 import com.cloud.agent.api.to.DataTO;
@@ -100,10 +112,19 @@ import com.cloud.resource.ServerResourceBase;
 import com.cloud.storage.DataStoreRole;
 import com.cloud.storage.Storage.ImageFormat;
 import com.cloud.storage.StorageLayer;
+import com.cloud.storage.VMTemplateStorageResourceAssoc;
+import com.cloud.storage.template.Processor;
 import com.cloud.storage.template.Processor.FormatInfo;
+import com.cloud.storage.template.QCOW2Processor;
+import com.cloud.storage.template.RawImageProcessor;
+import com.cloud.storage.template.TemplateLocation;
+import com.cloud.storage.template.TemplateProp;
+import com.cloud.storage.template.VhdProcessor;
+import com.cloud.storage.template.VmdkProcessor;
 import com.cloud.utils.NumbersUtil;
 import com.cloud.utils.S3Utils;
 import com.cloud.utils.S3Utils.FileNamingStrategy;
+import com.cloud.utils.SwiftUtil;
 import com.cloud.utils.exception.CloudRuntimeException;
 import com.cloud.utils.net.NetUtils;
 import com.cloud.utils.script.OutputInterpreter;
@@ -409,8 +430,14 @@ public class NfsSecondaryStorageResource extends ServerResourceBase implements S
         } else if (srcData.getHypervisorType() == HypervisorType.KVM) {
             File srcFile = getFile(srcData.getPath(), srcDataStore.getUrl());
             File destFile = getFile(destData.getPath(), destDataStore.getUrl());
-
-            ImageFormat srcFormat = srcData.getVolume().getFormat();
+            VolumeObjectTO volumeObjectTO = srcData.getVolume();
+            ImageFormat srcFormat = null;
+            //TODO: the image format should be stored in snapshot table, instead of getting from volume
+            if (volumeObjectTO != null) {
+                srcFormat = volumeObjectTO.getFormat();
+            } else {
+                srcFormat = ImageFormat.QCOW2;
+            }
 
             // get snapshot file name
             String templateName = srcFile.getName();