Fetching 5 min. res. data from > a month ago?

[gm20175]

Hello,

Without issue, we have implemented very large RRAs without consolidation per gandalf's excellent instructions: http://docs.cacti.net/node/54

We are using the yearly RRA parameters as specified, and Cacti provides "high resolution" graphical data wonderfully. Thank you!

One question, how does one FETCH 5 minute data from the RRA for a duration of time greater than a few days?

$ rrdtool fetch [rrd file] AVERAGE -r 1 -s 1month

If, for example. the above syntax is used, 2 hour data is returned.

Any ideas on how to fetch other resolutions from such RRAs?

Appreciate any help! Thanks gandalf for your guidance!

Thank You,
gm20175

[fmangeant]

Hi

you need to modify the RRAs.

See this excellent HowTo from gandalf : http://forums.cacti.net/viewtopic.php?t=11425

[gm20175]

Thank You, fmangeant,

The RRDs are already created correctly according to Gandalf's no consolidation RRD tutorial (1 year RRDS). They do not require resizing, and they graph at 5 minute resolution even after a month worths of data has been collected.

Just need to know how to get 5 minute resolution via rrdtool fetch...

$ rrdtool fetch [rrd] AVERAGE -s -1month

...returns 1 month of data at 2 hour resolution.

How does one make rrdtool fetch return 1 month of data at 5 minute resolution?

The 5 minute data exists in the RRD---it can be dumped into XML, but rrdtool fetch only shows 2 hour resolution for fetches of time greater than a couple of days.

Thank You,
Gregory

[gandalf]

I'm quite used to rrdtool, but personally, I can't answer this. Please post the question to the rrdtool_users mailinglist. The real rrdtool guru's are sitting there
Reinhard