docs: def _sync_db_fcp_list(self):
          """sync db records from given fcp list, for example, you need
          warn if some FCP already removed while it's still in use,
          or info about the new FCP added"""
          fcp_db_list = self.db.get_all()
  
          for fcp_rec in fcp_db_list:
              if not fcp_rec[0].lower() in self._fcp_pool:
                  self._report_orphan_fcp(fcp_rec[0])
  
          for fcp_conf_rec, v in self._fcp_pool.items():
              res = self.db.get_from_fcp(fcp_conf_rec)
  
              # if not found this record, a [] will be returned
              if len(res) == 0:
                  self._add_fcp(fcp_conf_rec)