OMRON

  • いいものを作ってる会社だと思う(個人の意見です)

OMRONのUPSをRaspberry Piとzabbixで監視する.

オムロンのUPS BY50Sを持っているが,こいつはRJ45の口がなく,SNMP/syslogを用いた監視ができない. しかしUSB-Bの口がついていて,ここからなら情報を抜くことができる. 今回はraspberry piとUPS をUSB接続し,Raspgerri Piをproxy/media converterとして利用する形でzabbixでUPSを監視してみることにする.

準備/前提

Raspberry Piはversion4の4Dmodelを,OSにはubuntu server 18.04を用いている. 様々なUPSの情報を取得することができるNetwork UPS Toolsというものが存在する.今回はこれを利用する.

installation/configuration

Network UPS Toolsのinstall

sudo apt install nut

ここでUSB接続してOMRONのデバイスを探す

% lsusb|grep -i OMRON
Bus 001 Device 004: ID 0590:0081 Omron Corp.

みえた.

/etc/nut/nut.cong のmodeをnoneからstandaloneに変更する.

% sudo cat /etc/nut/nut.conf
# Network UPS Tools: example nut.conf
#
##############################################################################
# General section
##############################################################################
# The MODE determines which part of the NUT is to be started, and which
# configuration files must be modified.
#
# This file try to standardize the various files being found in the field, like
# /etc/default/nut on Debian based systems, /etc/sysconfig/ups on RedHat based
# systems, ... Distribution's init script should source this file to see which
# component(s) has to be started.
#
# The values of MODE can be:
# - none: NUT is not configured, or use the Integrated Power Management, or use
#   some external system to startup NUT components. So nothing is to be started.
# - standalone: This mode address a local only configuration, with 1 UPS
#   protecting the local system. This implies to start the 3 NUT layers (driver,
#   upsd and upsmon) and the matching configuration files. This mode can also
#   address UPS redundancy.
# - netserver: same as for the standalone configuration, but also need
#   some more network access controls (firewall, tcp-wrappers) and possibly a
#   specific LISTEN directive in upsd.conf.
#   Since this MODE is opened to the network, a special care should be applied
#   to security concerns.
# - netclient: this mode only requires upsmon.
#
# IMPORTANT NOTE:
#  This file is intended to be sourced by shell scripts.
#  You MUST NOT use spaces around the equal sign!

MODE=standalone

/etc/nut/upsd.usersを編集.

% sudo cat /etc/nut/upsd.users
[upsmon]
password = pass
upsmon master
% sudo cat /etc/nut/upsmon.conf | egrep "^[^#]"
MONITOR by50s@localhost 1 upsmon pass master
MINSUPPLIES 1
SHUTDOWNCMD "/sbin/shutdown -h +0"
POLLFREQ 5
POLLFREQALERT 5
HOSTSYNC 15
DEADTIME 15
POWERDOWNFLAG /etc/killpower
RBWARNTIME 43200
NOCOMMWARNTIME 300
FINALDELAY 5
% sudo cat /etc/udev/rules.d/90-omron-ups.rules
# Omron BY50S - blazer_usb
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", \
ATTRS{idVendor}=="0590", ATTRS{idProduct}=="0081", \
MODE="0664", GROUP="nut", SYMLINK+="ups%n"

ここで SYMLINK+="ups%n"としたのがポイント.今回は同じ階層に複数のUPSをつないだので,%nをつけて識別できるようにしている.

% sudo cat /etc/nut/ups.conf | egrep "^[^#]"
[by50s]
  driver = blazer_usb
  port = /dev/ups
  desc = "Omron UPS BY50S"
  vendorid = 0590
  productid = 0081
  subdriver = ippon
  default.battery.voltage.high = 13.5
  default.battery.voltage.low = 11