public static boolean checkCGCreatedOnBackEndArray(Volume volume){
  return (volume != null && NullColumnValueGetter.isNotNullValue(volume.getReplicationGroupInstance()));
}

public static boolean checkCGCreatedOnBackEndArray ( Volume volume ) { return ( volume != null && NullColumnValueGetter . isNotNullValue ( volume . getReplicationGroupInstance ( ) ) ) ; }
check back end cg created on array or not for the given volume
