public String getVolumeStringRepresentation() {
   return MemoryUtils.createMemoryStateString(
       storageDomainId,
       storagePool.getId(),
       memoryDumpImageGroupId,
       memoryDumpVolumeId,
       vmConfImageGroupId,
       vmConfVolumeId);
 }
 @Override
 public String getVolumeStringRepresentation() {
   return MemoryUtils.createMemoryStateString(
       storageDomainId,
       storagePool.getId(),
       memoryDisk.getId(),
       memoryDisk.getImageId(),
       metadataDisk.getId(),
       metadataDisk.getImageId());
 }
 private Guid addMetadataDisk() {
   DiskImage metadataDisk = MemoryUtils.createSnapshotMetadataDisk();
   return addDisk(metadataDisk);
 }
 private Guid addMemoryDisk() {
   DiskImage memoryDisk = MemoryUtils.createSnapshotMemoryDisk(vm, getStorageType());
   return addDisk(memoryDisk);
 }