[rrd-users] Re: HELP needed with "rrdtool tune"

Alex van den Bogaerdt alex at ergens.op.het.net
Wed Sep 25 17:01:39 MEST 2002

On Wed, Sep 25, 2002 at 03:01:48PM +0200, Braendle, Juergen wrote:

> I ran into a performance problem with my SUN monitoring a lot of things with
> MRTG and RRD

Hmm..  perl, probably.

> So now I want to change the update intervall for some data from the default
> 5 minutes to 10 minutes
> The main problem is, that I don't want to loose my old data collected for
> about one year.

Just update every 10 minutes.  You don't need to alter anything
except the heartbeat.  The heartbeat needs to be *at*least* 600.

> So my question is: What happens if I do something like this:
> --> rrdtool tune filesys.rrd -h TOTAL:120 -h USED:120 -h AVAIL:120

Er,  that's two minutes ?!?

> How do I change the "step" value for this rrds or isnt't this nescessary?

If you would change the "step" value, you would change the amount
of time per PDP and thus the amount of time per CDP.  Don't.


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