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{"filename" => "/var/lib/collectd/cthulhu/disk-vda/disk_io_time.rrd",
"rrd_version" => "0003",
"step" => 10,
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"ds[io_time].last_ds" => "25808161",
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"ds[weighted_io_time].index" => 1,
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"ds[weighted_io_time].last_ds" => "82153043",
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"rra[2].cf" => "MAX",
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"rra[10].cf" => "MIN",
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"rra[14].cdp_prep[1].unknown_datapoints" => 0}