[rrd-users] Questions of new user

Simon Hobson linux at thehobsons.co.uk
Sun Dec 6 10:37:24 CET 2009


rrd-users at ficos.de wrote:

>  > 2. Example:
>>
>>  i have --step 300
>>  If i will update often, then 300 sec (for example every 10 seconds)
>>  what will be? Which data is stored?
>
>if you update more often than required for you step size, the data will be
>aggregated using the aggregation function you've chosen (MIN, MAX, 
>AVERAGE etc)
>so either the smallest or the highest or the average of the values 
>will be stored.

No, the aggregation functions are NOT used for sub-step updates.

See Alex's tutorial on rates and normalising - it's all explained well there.
http://www.vandenbogaerdt.nl/rrdtool/


-- 
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.



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