SCADA Server Sizing Calculator
Estimate the number of SCADA historian servers and monthly storage needed for a tag set, assuming 10 000 tags per server and ~0.1 KB per sample.
How to Use the SCADA Server Sizing Calculator
- Enter the total number of tags.
- Enter samples per tag per day.
- Click Calculate to see servers and storage estimates.
Casos de Uso
- •SCADA project sizing.
- •Historian licensing estimates.
- •Industrial IT infrastructure planning.
Fórmula
servers = ⌈tags / 10 000⌉. Storage (MB/month) = tags · samples_per_day · 30 · 0.1 / 1024. Storage (GB/month) = MB / 1024.
Perguntas Frequentes
Where does 10 000 tags/server come from?
Typical guidance for Wonderware, Ignition and GE iFIX historians on modern hardware. Actual numbers depend on tag update rate and polling architecture.
Why 0.1 KB per sample?
A rough average for compressed historian records (timestamp, quality, value). Raw float samples are closer to 16–32 bytes; swinging-door compression halves this again.