[rrd-users] RRDGRAPH : choose the RRA resolution used to generate the graphs ?

[Thomas Bleau]

Hello, i created a RRD database for graphing the outdoor temperature. So, i
decided to store the data in several resolutions with RRA archives. I have a
problem because the finest resolution is always used by the rrdtool graph
command. How can i choose a specific resolution or a specific RRA ?

This is a piece of my rrdtool create command :
    'RRA:MIN:0.5:6:2880', # 1 minute summary for 48 hours (2 day)
    'RRA:AVERAGE:0.5:6:2880',   # 1 minute summary for 48 hours (2 day)
    'RRA:MAX:0.5:6:2880',       # 1 minute summary for 48 hours (2 day)

    'RRA:MIN:0.5:90:1344', # 1/4 hour summary for 14 day (2 week)
    'RRA:AVERAGE:0.5:90:1344',  # 1/4 hour summary for 14 day (2 week)
    'RRA:MAX:0.5:90:1344',      # 1/4 hour summary for 14 day (2 week)

    'RRA:MIN:0.5:360:1440', # 1 hour summary for 60 days (2 month)
    'RRA:AVERAGE:0.5:360:1440', # 1 hour summary for 60 days (2 month)
    'RRA:MAX:0.5:360:1440',     # 1 hour summary for 60 days (2 month)

Thanks by advance
Thomas.

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