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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have an rrd file with a few weeks of data in it. Using fetch,
I can see I have data points every 5 minutes from before 5/10/09 to current
(5/20/09).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>My RRD file def is <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-indent:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>"DS:raw:GAUGE:3600:0:1",<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
"RRA:AVERAGE:0.5:1:17280",<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
"RRA:AVERAGE:0.5:288:360",<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>When I try to use trend like <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>graph x --start 1241969266 --end 1242829666
'DEF:rawdata=/usr/local/tools/rrd/envysion.ea.rrd:raw:AVERAGE' \<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>'CDEF:trend=rawdata,854400,TREND'
\<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-indent:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>'VDEF:last=trend,LAST'
'PRINT:last:%2.4lf'<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I get nan<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It seems I should be able to set the timespan parameter for
TREND to 10 days (10*24*60*60). However, I get nan.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If I reduce the timespan to a somewhat random, smaller
number (say 850400), then I get a number. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any thoughts as to why I am getting nan? There are no nan datapoints
in this time range, I’ve checked with fetch. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Using TRENDNAN yields the same result.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,<br>
Rob<o:p></o:p></span></font></p>
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height=58 id="_x0000_i1025" src="cid:image001.jpg@01C9D92D.F8CF2310"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Century Gothic"><span style='font-size:
10.0pt;font-family:"Century Gothic"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color="#5f5f5f" face="Century Gothic"><span
style='font-size:10.0pt;font-family:"Century Gothic";color:#5F5F5F;font-weight:
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<st1:State w:st="on">CO</st1:State> <st1:PostalCode w:st="on">80027</st1:PostalCode><o:p></o:p></span></font></p>
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