Data platform·6 min read
Historian Sizing 101
Retention and edge tier strategy in a 2.4M readings/day scenario.
HistorianRetention
Retention tiers
Cost optimization for 2.4M readings/day with hot/warm/cold tiers. Hot tier 7 days @ 1s, warm 90 days @ 1m, cold 5 years @ 1h.
Edge pre-filter
35% data reduction at the edge with deadband + swing door; only anomalies and KPI summaries reach the central historian.