リファレンス
手順 (MRTG)
動作確認
- 先代サーバ機器が故障して早一年、室内とは言え野ざらしで放置してしまったが、無事動作しているようだ。
Jul 16 20:16:01 rp3 kernel: [183627.477953] usb 1-1.3: USB disconnect, device number 6 Jul 16 20:16:01 rp3 upowerd[1459]: unhandled action 'unbind' on /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/0003:1774:1001.0001 Jul 16 20:16:01 rp3 upowerd[1459]: unhandled action 'unbind' on /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0 Jul 16 20:16:01 rp3 upowerd[1459]: unhandled action 'unbind' on /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3 Jul 16 20:16:03 rp3 kernel: [183629.490329] usb 1-1.3: new low-speed USB device number 7 using dwc_otg Jul 16 20:16:03 rp3 kernel: [183629.606053] usb 1-1.3: New USB device found, idVendor=1774, idProduct=1001 Jul 16 20:16:03 rp3 kernel: [183629.606069] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Jul 16 20:16:03 rp3 kernel: [183629.606080] usb 1-1.3: Product: Hygrometer/Thermometer Jul 16 20:16:03 rp3 kernel: [183629.606089] usb 1-1.3: Manufacturer: Strawberry Linux Co.,Ltd. Jul 16 20:16:03 rp3 kernel: [183629.612976] hid-generic 0003:1774:1001.0002: hiddev0,hidraw0: USB HID v1.00 Device [Strawberry Linux Co.,Ltd. Hygrometer/Thermometer] on usb-3f980000.usb-1.3/input0 Jul 16 20:16:04 rp3 mtp-probe: checking bus 1, device 7: "/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3" Jul 16 20:16:04 rp3 mtp-probe: bus: 1, device: 7 was not an MTP device Jul 16 20:16:04 rp3 upowerd[1459]: unhandled action 'bind' on /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/0003:1774:1001.0002 Jul 16 20:16:04 rp3 upowerd[1459]: unhandled action 'bind' on /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0 Jul 16 20:16:04 rp3 upowerd[1459]: unhandled action 'bind' on /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3
USBRHコマンドのインストール
- githubからRSBRHコマンドをダウンロードする
$ sudo apt install gcc libusb-dev $ make $ sudo chown root:root usbrh $ sudo chmod u+s usbrh $ ./usbrh 26.78 57.03
MRTG用シェルスクリプト
#! /usr/bin/zsh
export LANG=C
(( TEMPERATURE = 0.0 ))
(( HUMIDITY = 0.0 ))
TEMPERATURE=`/home/cutxout/bin/usbrh | awk '{ print $1*100 }'`
HUMIDITY=`/home/cutxout/bin/usbrh | awk '{ print $2*100 }'`
echo $TEMPERATURE
echo $HUMIDITY
echo "0"
echo "USBRH"
mrtg.conf
Target[rp3.usbrh]: `/home/cutxout/bin/usbrh_mrtg.sh` Options[rp3.usbrh]: growright, gauge, nopercent, dorelpercent MaxBytes[rp3.usbrh]: 100 ShortLegend[rp3.usbrh]: Bytes kMG[rp3.usbrh]: kilo[rp3.usbrh]: 1000 YLegend[rp3.usbrh]: USBRH Temperature/Humidity Legend1[rp3.usbrh]: USBRH Temperature Legend2[rp3.usbrh]: USBRH Humidity LegendI[rp3.usbrh]: USBRH Temperature LegendO[rp3.usbrh]: USBRH Humidity XSize[rp3.usbrh]: 600 YSize[rp3.usbrh]: 200 Title[rp3.usbrh]: USBRH Temperature/Humidity PageTop[rp3.usbrh]: <H1>USBRH Temperature/Humidity</H1>
結果
- 一応表示できたが、MRTGって小数を扱えないことを思い出した。観測対象が室温と湿度で整数のみと言うのはさすがにおおざっぱにすぎると思うので、とりあえず100倍してお茶を濁すとして、根本的にはRRDToolsをやり直しであるな。
- せっかくだから、Raspberry Piの温度も観測対象に入れてみましょう。CPUとかHDD位だったら取れるんじゃないだろうか。
手順 (RRDTool)
データ系列
- 以前は気象庁のアメダスデータも取得していたけど、半分以上の期間でうまく行かなかったので今回は見送り。
- USBRHから取得する室温と湿度、Raspberry Piから取得するCPU温度の三系列でスタートしましょう。
- RRDToolsはアーキテクチャが異なるとデータベースの使い回しはできないらしいので、最初からやり直し。orz
% rrdtool dump usbrh.rrd ERROR: This RRD was created on another architecture
Raspberry PiのCPU温度を取得
% cat /sys/devices/virtual/thermal/thermal_zone0/temp | awk '{ print $1/1000 }'
41.856
rrdデータベースを作成
rrdtool create usbrh.rrd \
--start "07/01/2019 00:00" \
--step 300 \
DS:TEMPERATURE_CPU:GAUGE:600:U:100 \
DS:TEMPERATURE_ROOM:GAUGE:600:U:100 \
DS:HUMIDITY_ROOM:GAUGE:600:U:100 \
RRA:AVERAGE:0.5:1:210840 \
RRA:MAX:0.5:1:210840 \
RRA:MIN:0.5:1:210840 \
RRA:LAST:0.5:1:210840
$ ls -lh
-rw-rw-r-- 1 cutxout cutxout 20M 7月 28 16:12 usbrh.rrd
スクリプト
#! /usr/bin/zsh
#Initialize Variables
export LANG=C
(( TEMPERATURE_CPU = 0.0 ))
(( TEMPERATURE_ROOM = 0.0 ))
(( HUMIDITY_ROOM = 0.0 ))
TEMPERATURE_CPU=`cat /sys/devices/virtual/thermal/thermal_zone0/temp | awk '{ print $1/1000 }'`
TEMPERATURE_ROOM=`/home/cutxout/bin/usbrh | awk '{ print $1 }'`
HUMIDITY_ROOM=`/home/cutxout/bin/usbrh | awk '{ print $2 }'`
rrdtool update /home/cutxout/public_html/usbrh/usbrh.rrd N:$TEMPERATURE_CPU:$TEMPERATURE_ROOM:$HUMIDITY_ROOM
rrdtool graph /home/cutxout/public_html/usbrh/usbrh-day.png \
--imgformat=PNG \
--start=-173100 \
--end=-300 \
--base=1000 \
--height=200 \
--width=600 \
--title="Temperature and Humidity (Daily)" \
--vertical-label="Celsius / Percent" \
DEF:a="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_CPU:AVERAGE \
DEF:b="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_ROOM:AVERAGE \
DEF:c="/home/cutxout/public_html/usbrh/usbrh.rrd":HUMIDITY_ROOM:AVERAGE \
AREA:a#00663B:"CPU Temperature" \
GPRINT:a:MAX:"MAX\:%5.2lf %S" \
GPRINT:a:MIN:"MIN\:%5.2lf %S" \
GPRINT:a:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:a:LAST:"LAST\:%5.2lf %S\n" \
AREA:b#009959:"ROOM Temperature" \
GPRINT:b:MAX:"MAX\:%5.2lf %S" \
GPRINT:b:MIN:"MIN\:%5.2lf %S" \
GPRINT:b:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:b:LAST:"LAST\:%5.2lf %S\n" \
LINE2:a#00663B: \
LINE2:b#009959: \
LINE1:c#C90929:"ROOM Humidity " \
GPRINT:c:MAX:"MAX\:%5.2lf %S" \
GPRINT:c:MIN:"MIN\:%5.2lf %S" \
GPRINT:c:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:c:LAST:"LAST\:%5.2lf %S\n"
rrdtool graph /home/cutxout/public_html/usbrh/usbrh-week.png \
--imgformat=PNG \
--start=-605100 \
--end=-300 \
--base=1000 \
--height=200 \
--width=600 \
--title="Temperature and Humidity (Daily)" \
--vertical-label="Celsius / Percent" \
DEF:a="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_CPU:AVERAGE \
DEF:b="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_ROOM:AVERAGE \
DEF:c="/home/cutxout/public_html/usbrh/usbrh.rrd":HUMIDITY_ROOM:AVERAGE \
AREA:a#00663B:"CPU Temperature" \
GPRINT:a:MAX:"MAX\:%5.2lf %S" \
GPRINT:a:MIN:"MIN\:%5.2lf %S" \
GPRINT:a:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:a:LAST:"LAST\:%5.2lf %S\n" \
AREA:b#009959:"ROOM Temperature" \
GPRINT:b:MAX:"MAX\:%5.2lf %S" \
GPRINT:b:MIN:"MIN\:%5.2lf %S" \
GPRINT:b:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:b:LAST:"LAST\:%5.2lf %S\n" \
LINE2:a#00663B: \
LINE2:b#009959: \
LINE1:c#C90929:"ROOM Humidity " \
GPRINT:c:MAX:"MAX\:%5.2lf %S" \
GPRINT:c:MIN:"MIN\:%5.2lf %S" \
GPRINT:c:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:c:LAST:"LAST\:%5.2lf %S\n"
rrdtool graph /home/cutxout/public_html/usbrh/usbrh-month.png \
--imgformat=PNG \
--start=-3629100 \
--end=-300 \
--base=1000 \
--height=200 \
--width=600 \
--title="Temperature and Humidity (Daily)" \
--vertical-label="Celsius / Percent" \
DEF:a="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_CPU:AVERAGE \
DEF:b="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_ROOM:AVERAGE \
DEF:c="/home/cutxout/public_html/usbrh/usbrh.rrd":HUMIDITY_ROOM:AVERAGE \
AREA:a#00663B:"CPU Temperature" \
GPRINT:a:MAX:"MAX\:%5.2lf %S" \
GPRINT:a:MIN:"MIN\:%5.2lf %S" \
GPRINT:a:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:a:LAST:"LAST\:%5.2lf %S\n" \
AREA:b#009959:"ROOM Temperature" \
GPRINT:b:MAX:"MAX\:%5.2lf %S" \
GPRINT:b:MIN:"MIN\:%5.2lf %S" \
GPRINT:b:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:b:LAST:"LAST\:%5.2lf %S\n" \
LINE2:a#00663B: \
LINE2:b#009959: \
LINE1:c#C90929:"ROOM Humidity " \
GPRINT:c:MAX:"MAX\:%5.2lf %S" \
GPRINT:c:MIN:"MIN\:%5.2lf %S" \
GPRINT:c:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:c:LAST:"LAST\:%5.2lf %S\n"
rrdtool graph /home/cutxout/public_html/usbrh/usbrh-year.png \
--imgformat=PNG \
--start=-31536000 \
--end=-300 \
--base=1000 \
--height=200 \
--width=600 \
--title="Temperature and Humidity (Daily)" \
--vertical-label="Celsius / Percent" \
DEF:a="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_CPU:AVERAGE \
DEF:b="/home/cutxout/public_html/usbrh/usbrh.rrd":TEMPERATURE_ROOM:AVERAGE \
DEF:c="/home/cutxout/public_html/usbrh/usbrh.rrd":HUMIDITY_ROOM:AVERAGE \
AREA:a#00663B:"CPU Temperature" \
GPRINT:a:MAX:"MAX\:%5.2lf %S" \
GPRINT:a:MIN:"MIN\:%5.2lf %S" \
GPRINT:a:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:a:LAST:"LAST\:%5.2lf %S\n" \
AREA:b#009959:"ROOM Temperature" \
GPRINT:b:MAX:"MAX\:%5.2lf %S" \
GPRINT:b:MIN:"MIN\:%5.2lf %S" \
GPRINT:b:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:b:LAST:"LAST\:%5.2lf %S\n" \
LINE2:a#00663B: \
LINE2:b#009959: \
LINE1:c#C90929:"ROOM Humidity " \
GPRINT:c:MAX:"MAX\:%5.2lf %S" \
GPRINT:c:MIN:"MIN\:%5.2lf %S" \
GPRINT:c:AVERAGE:"AVERAGE\:%5.2lf %S" \
GPRINT:c:LAST:"LAST\:%5.2lf %S\n"
crontab -e
*/5 * * * * /home/cutxout/bin/usbrh_rrd.sh
結果
uptime
rp3% snmpwalk -v2c -c nvr510.snmp 192.168.100.1 1.3.6.1.2.1.1.3.0 | awk '{ print $5 }'
35
