SIEM 7.7.2 Patch 2 - Event Retention

[cos]

I have multiple devices configured to send logs to my server logs (SIEM) and I need to keep all these logs of my devices for 2 years, for query and reports futures.I have the following devices with diferent tecnologies: routers, switches, firewalls, to send logs to my SIEM and I have setup as attached image.

Thanks for your help,
dicu