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DB size estimation for Europe/Italy #2990

Answered by lonvia
KylesDev asked this question in Q&A
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As a rule-of-thumb you can take the size of the PBF for the planet and the size of the PBF for your extract, do a simple linear interpolation of RAM and disk size and round up a bit. So for Europe and Italy something like that:

PBF size % of planet RAM disk space
planet 68GB 100% 128GB 900GB
europe 27GB 40% 64GB 400GB
italy 2GB 3% 4GB 35GB

RAM is always a lower bound. Having more RAM never hurts. For disk space add a fixed 80GB for the flat node file if you use one (strongly recommended for planet and europe). If you want to run updates, add 10% disk space for index bloat and on top of that 10% database growth per year.

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