>    Yes, the figures are like this:
>    * average number of raw inserts / second (without any optimization
> or previous aggregation): #clients (~ 100 thousand) * #sensors (~ 10)
> / 6seconds = 166 thousand inserts / second...

this is average?
166 000 * 20 bytes per record * 86400 seconds per day = 280GB / day ,
not counting indices.

What is the time span You want to have the data from?

Greetings
Marcin

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