[rrd-users] Re: RRD general info about length of storage

Clay Jones clay at clay-jones.com
Thu Feb 14 01:45:12 MET 2002


I understand now, I think.  Thanks for your patience.

Since the number of steps determines the length of the RRA (hourly, daily,
etc. => 12 steps of 300 seconds = 1 row in "hourly" RRA), is it correct to
say that given the same interval, the RRA with the largest number of steps
dictates the total size of the database?

If I am correct with this assumption, I believe I fully understand the
model.

> On the other hand, it looks as if you want to define rows that contain
> one year EACH.  First of all, a year is not a fixed amount of data.
> You can define rows that contain 365 days each, not one year.
> To gather 365 days (assuming the default of 300 seconds per interval)
> of data you'd need to collect 105120 intervals which will be combined
> to form one row in your RRA.  (There are 288 intervals per day, and
> 365 days; 288 * 365 is 105120).
> 



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