This is configurable per Iris installation but the default values are:



WHAT KEPT
graphs - 5 minutes
60 days
graphs - hourly
12 months
graphs - 6 hourly 5 years


raw data 7 days
archived raw data 30 days


old graphs  360 days


Netflow 5 minute data 7 days
Netflow hourly data 60 days
Netflow daily data 180 days


events (log, etc.) 180 days


CDRs 180 days


fortilogs (traffic) 180 days
fortilogs (filter) 360 days