@Override public boolean deleteHost(Long hostId) { List<SnapshotVO> snapshots = _snapshotDao.listByHostId(hostId); if (snapshots != null && !snapshots.isEmpty()) { throw new CloudRuntimeException( "Can not delete this secondary storage due to there are still snapshots on it "); } List<Long> list = _templateDao.listPrivateTemplatesByHost(hostId); if (list != null && !list.isEmpty()) { throw new CloudRuntimeException( "Can not delete this secondary storage due to there are still private template on it "); } _vmTemplateHostDao.deleteByHost(hostId); HostVO host = _hostDao.findById(hostId); host.setGuid(null); _hostDao.update(hostId, host); _hostDao.remove(hostId); return true; }