@DB
  @Override
  public boolean deleteDataStore(DataStore store) {
    List<StoragePoolHostVO> hostPoolRecords = _storagePoolHostDao.listByPoolId(store.getId());
    StoragePool pool = (StoragePool) store;
    boolean deleteFlag = false;
    // find the hypervisor where the storage is attached to.
    HypervisorType hType = null;
    if (hostPoolRecords.size() > 0) {
      hType = getHypervisorType(hostPoolRecords.get(0).getHostId());
    }

    // Remove the SR associated with the Xenserver
    for (StoragePoolHostVO host : hostPoolRecords) {
      DeleteStoragePoolCommand deleteCmd = new DeleteStoragePoolCommand(pool);
      final Answer answer = agentMgr.easySend(host.getHostId(), deleteCmd);

      if (answer != null && answer.getResult()) {
        deleteFlag = true;
        // if host is KVM hypervisor then send deleteStoragepoolcmd to all the kvm hosts.
        if (HypervisorType.KVM != hType) {
          break;
        }
      } else {
        if (answer != null) {
          s_logger.debug("Failed to delete storage pool: " + answer.getResult());
        }
      }
    }

    if (!deleteFlag) {
      throw new CloudRuntimeException("Failed to delete storage pool on host");
    }

    return dataStoreHelper.deletePrimaryDataStore(store);
  }