On Thu, May 27, 2004 at 11:08:24AM +0100, John Murdoch wrote: > This does seem logical... but my other, more granular data is in a 15 min > (--step 900) RRD, so updating at noon-only is impossible if I stay with the > same RRD. :( I am guessing this is the cause of why MIN/MAX points are > represented as continuous lines for the whole day. Should I construct a > seperate RRD to hold the noon-based data? (see below for my DS/RRD layout)
I have a database with a one-second granularity. I sometimes update this database twice a day. No problem. Just make sure heartbeat allows it. > > > 2) Is it possible to plot two RRAs using the same consolidation function, > > > but with differing steps/rows, on the same graph? I'd like to plot two > > > RRA AVERAGEs of varying granularity on the same graph, but I can't seem > > > to do this. > > > > There's no problem whatsoever to do this AFAIK. > > Hmmm... this is puzzling me (using RRDtool 1.0.47). I've tried plotting the > two different AVERAGES, but rrdtool graph seems to just pick the most > relevant to the timescale and plots that twice. Here's my RRD layout (every > 15 mins for 3 years): > "DS:users:GAUGE:1700:0:U", "RRA:AVERAGE:0.5:1:105120", > "RRA:AVERAGE:0.75:96:1095", "RRA:MIN:0.75:96:1095", "RRA:MAX:0.75:96:1095" OK, when you try to fetch the RRAs from the same RRD it will currently fail. Rephrase: <AFAIK> You _can_ graph data from different RRAs on the same graph. In order to aquire the data you need to fetch them from different RRDs. </AFAIK> But make sure you test this before you rely on what I say. Alex -- I ask you to respect any "Reply-To" and "Mail-Follow-Up" headers. If you reply to me off-list, you'd better tell me you're doing so. If you don't, and if I reply to the list, that's your problem, not mine. -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
