FreeNAS 9.3 UPS Monitoring
Jul 16, 2015

It’s always a good idea to have a battery backup for servers and desktops.

FreeNAS is capable of running the nut UPS monitoring service. This will allow other servers to monitor the UPS and shutdown on low battery.

FreeNAS

  1. Start by SSHing into your FreeNAS server

  2. Locate the UPS by executing usbconfig sudo usbconfig

    ugen0.1: <EHCI root HUB Intel> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen1.1: <EHCI root HUB Intel> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen0.2: <product 0x8008 vendor 0x8087> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen1.2: <product 0x8000 vendor 0x8087> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen0.3: <product 0x7000 vendor 0x0557> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (100mA)
ugen0.4: <product 0x2419 vendor 0x0557> at usbus0, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON (160mA)
ugen1.3: <Ultra Fit SanDisk> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (224mA)
ugen1.4: <CRDA103AF1 CP1000PFCLCD> at usbus1, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (2mA)

    Copy the identifier. Mine is ugen1.4.

    For serial devices you’ll need to read this page. https://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/serial.html

  1. Log into FreeNAS and go to the “Services” tab

  2. Click on the wrench next to “UPS”

    • Select your UPS from the “Driver” drop down menu
    • Select the port your device is on
    • Select the shutdown mode
    • Set the monitor user/password
    • Check the box for “Remote Monitor” (this allows other servers to monitor the UPS)

  4. “OK”

  5. Turn on “UPS”

Nut Configuration

  1. Install nut apt-get install nut

  2. Edit the nut configuration to change the mode /etc/nut/nut.conf MODE=netclient

  3. Edit the monitor configuration /etc/nut/upsmon.conf

    Look for NOTIFYFLAG and append +EXEC to the ones you want.

    NOTIFYFLAG ONLINE       SYSLOG+WALL     
NOTIFYFLAG ONBATT       SYSLOG+WALL+EXEC
NOTIFYFLAG LOWBATT      SYSLOG+WALL+EXEC
# NOTIFYFLAG FSD        SYSLOG+WALL
# NOTIFYFLAG COMMOK     SYSLOG+WALL
# NOTIFYFLAG COMMBAD    SYSLOG+WALL
NOTIFYFLAG SHUTDOWN     SYSLOG+WALL+EXEC
# NOTIFYFLAG REPLBATT   SYSLOG+WALL
# NOTIFYFLAG NOCOMM     SYSLOG+WALL
# NOTIFYFLAG NOPARENT   SYSLOG+WALL

    At the bottom add: MONITOR [email protected] 1 upsmon password slave

    Change the IP address to that of your FreeNAS server.

  4. Restart nut systemctl restart nut-monitor.service

  5. Test

    root@:~# upsc [email protected]
Init SSL without certificate database
battery.charge: 100
battery.charge.low: 10
battery.charge.warning: 20
battery.mfr.date: CPS
battery.runtime: 1290
battery.runtime.low: 300
battery.type: PbAcid
battery.voltage: 16.0
battery.voltage.nominal: 24
device.mfr: CP1000PFCLCD
device.model: CRDA103*AF1
device.serial: CPS
device.type: ups
driver.name: usbhid-ups
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: /dev/ugen1.4
driver.version: 2.7.2
driver.version.data: CyberPower HID 0.3
driver.version.internal: 0.38
input.transfer.high: 136
input.transfer.low: 88
input.voltage: 121.0
input.voltage.nominal: 120
output.voltage: 137.0
ups.beeper.status: disabled
ups.delay.shutdown: 20
ups.delay.start: 30
ups.load: 22
ups.mfr: CP1000PFCLCD
ups.model: CRDA103*AF1
ups.productid: 0501
ups.realpower.nominal: 600
ups.serial: CPS
ups.status: OL
ups.test.result: No test initiated
ups.timer.shutdown: -60
ups.timer.start: -60
ups.vendorid: 0764

You should also unplug the UPS for a few seconds to see if you get a notification in dmesg.

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