[rrd-users] Re: resize my rrd's

[Andras Horvai]

Hi Alex,


>The RRA selection mechanism tries to match your request as closely as
>possible, and will end up with time ranges such as "2004-07-01 15:40" to
>"2004-07-08 15:35".  This will be fetched from the 5-minute RRA, not
>from the 30-minute RRA.
>
>Only if the 5-minute RRA hasn't got enough data, the 30-minute RRA will
>be the best choice.  Existing rows with "NaN" are quite different from
>non-existing rows.  This is why expanding the size of an RRA may yield
>surprising results.


I see, but can I handle this problem if I add only eg. 200 rows one time to my RRA and
wait 1 day to add an another amount of rows. What do you think what is the largest row
number what I can add to the RRA without this problem?

Thanks,

Andras

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