The AuxCopy task for storage policy takes longer than it should, in the zabbix charts we can see that in certain hours the link between locations (200mbps) is not saturated at all (as if replication stopped / slowed down for e.g. 5 hours).
New tasks come and finally replication can take up to ~ 50h (for replication, for example, 2TB - which should be sent in half of this time).
Best answer by kszaf
Thanks a lot for help!