Synology UPS NUT
Synology UPS NUT
Synology UPS NUT (network UPS Tools), connecting a Synology NAS to an UPS prevents dataloss or hardware failure in case of a power failure. It is also possible to turn off other network devices in case off a power failure. Synology has implemented NUT: http://networkupstools.org
Used configuration Synology UPS NUT:
Synology NAS connected via Dataport to APC Back-UPS ES 700.
The configuration files on the Synology NAS are found here:
/usr/syno/etc/ups, which you can access via a terminal
upsd.conf
upsd.users
ups.conf
After changing the file you can reload the configuration:
upsd -c reload
Settings via the Synology GUI
GUI, control panel, Hardware & Power, General
restart automatically after a power failure
GUI, control panel, Hardware & Power,UPS
Select Enable Network UPS Server, Permitted Disk Station Devices.
Select the devices who are allowed to connect.
To get UPS status information from another device and user:
you have to be in the upsd.users file and be in the list of permitted disk station devices, (control panel, Hardware & Power, UPS)
run the following command to check UPS information and status from another device:
upsc <name ups, see NAS /usr/syno/etc/ups/ups.conf>@<ip address NAS>
for example upsc ups@192.168.1.10
To change a value for example for testing:
upsrw -s battery.charge.low=<new value> -u <user, defined in upsd.conf NAS> -p <password user in upsd.conf> <name ups, see NAS /usr/syno/etc/ups/ups.conf>@<ip address NAS>
To install a nut client on a Mac:
I used Fink Project; http://www.finkproject.org to install Fink Project.
To install nut on your Mac:
fink install nut
The configuration files:
/sw/etc/nut
upsmon.conf:
RUN_AS_USER root
MONITOR <name ups, see synology ups.conf>@<ip address> 1 <user, see synology upsd.users> <password, see synology upsd.users> slave
MINSUPPLIES 1
SHUTDOWNCMD "/sbin/shutdown -u -h +0"
NOTIFYCMD /sw/sbin/upssched
POLLFREQ 5
POLLFREQALERT 5
HOSTSYNC 15
DEADTIME 15
POWERDOWNFLAG /etc/killpower
NOTIFYFLAG ONLINE EXEC
NOTIFYFLAG ONBATT SYSLOG+EXEC
NOTIFYFLAG LOWBATT EXEC
NOTIFYFLAG NOCOMM EXEC
NOTIFYFLAG COMMBAD IGNORE
NOTIFYFLAG COMMOK IGNORE
NOTIFYFLAG SHUTDOWN IGNORE
NOTIFYFLAG FSD EXEC
NOTIFYFLAG NOPARENT SYSLOG
RBWARNTIME 43200
NOCOMMWARNTIME 300
FINALDELAY 5
upssched.conf
CMDSCRIPT /sw/bin/upssched-cmd
PIPEFN /sw/var/run/ups/upssched/upssched.pipe
LOCKFN /sw/var/run/ups/upssched/upssched.lock
AT ONBATT <name ups, see synology ups.conf>@<ip address> EXECUTE on-battery
/sw/bin/upssched-cmd:
case $1 in
upsgone)
logger -t upssched-cmd "The UPS has been gone for awhile"
;;
on-battery)
osascript -e 'tell app "System Events" to display dialog "Power failure. Save your work" giving up after 20 buttons {"OK"} default button 1 with icon caution'
;;
*)
logger -t upssched-cmd "Unrecognized command: $1"
;;
esac
To start upsmon manually:
sudo upsmon -D (/sw/sbin/upsmon)
-D Raise the debugging level. upsmon will run in the foreground and
prints information on stdout about the monitoring process. Use this
multiple times for more details.
upsmon -c stop ( stop monitoring and exit)
upsmon -c reload ( reread upsmon.conf)
To start upsmon automatically on a macOS Sierra :
/Library/LaunchDaemons
-rw-r--r-- 1 root wheel org.networkupstools.upsmon.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>org.networkupstools.upsmon</string>
<key>RunAtLoad</key>
<true/>
<key>ProgramArguments</key>
<array>
<string>/sw/sbin/upsmon</string>
<string>-D</string> <!-- "-D" keeps upsmon from going into the background -->
</array>
<key>KeepAlive</key>
<true/>
<key>SuccessfulExit</key>
<false/> <!-- Do not respawn at shutdown time -->
</dict>
</plist>
To load manually:
sudo launchctl load /Library/LaunchDaemons/org.networkupstools.upsmon.plist
system.log:
com.apple.xpc.launchd[1] (org.networkupstools.upsmon): Unknown key for Boolean: SuccessfulExit
com.apple.xpc.launchd[1] (org.networkupstools.upsmon): This service is defined to be constantly running and is inherently inefficient.
To see if it is running:
sudo launchctl list|fgrep -v com.app
PID Status Label
…
<PID> 0 org.networkupstools.upsmon
ps -ef |grep upsmon
0 88 1 0 9:52AM 0:00.01 /sw/sbin/upsmon -D
0 167 88 0 9:52AM 0:00.50 /sw/sbin/upsmon -D
To install a nut client on Linux CentOS 6.9 :
Download the binary package of Feodora EPEL6, nut-client
Install on Linux machine with rpm command:
for example: rpm -ivh nut-client-2.6.5-2.el6.x86_64.rpm
make a user nutmon and at to group nut:
adduser nutmon
passwd nutmon
usermod -a -G nut nutmon
groups nut
Config files:
/etc/ups/
check nut group read rights upsmon.conf
upsmon.conf:
RUN_AS_USER nutmon
MONITOR <name ups, see synology ups.conf>@<ip address> 1 <user, see synology upsd.users> <password, see synology upsd.users> slave
MINSUPPLIES 1
SHUTDOWNCMD "/sbin/shutdown -h +0"
POLLFREQ 5
POLLFREQALERT 5
HOSTSYNC 15
DEADTIME 15
POWERDOWNFLAG /etc/killpower
RBWARNTIME 43200
NOCOMMWARNTIME 300
FINALDELAY 5
To run upsmon at startup:
chkconfig --list ups
chkconfig ups on
to check upsmon running:
service ups status
ps -ef |grep upsmon:
root 2271 1 0 Jul08 ? 00:00:00 /usr/sbin/upsmon
nutmon 2273 2271 0 Jul08 ? 00:00:09 /usr/sbin/upsmon
To start en stop upsmon:
service ups start
service ups stop
The nut client on Ubuntu 20.04 :
Check permission on Synology NAS to connect to network UPS server
Synology GUI, control panel, Hardware & Power,UPS
Select Enable Network UPS Server, Permitted Disk Station Devices.
Select the devices which are allowed to connect.
On Linux computer via the terminal.
- Sudo apt install nut-client
- Check permission on Synology NAS to connect to network UPS server
sudo upsc <user>@<synology server>
for example upsc ups@192.168.1.10
- sudo adduser nutmon
- sudo usermod -a -G nut nutmon
- cd /etc/nut
- sudo vi upsmon.conf:
RUN_AS_USER nutmon
MONITOR <name UPS>@<synology nas server> 1 <user> <password> slave
"slave" means this system shuts down immediately when power goes critical.
<powervalue> is an integer - the number of power supplies that this UPS
# feeds on this system. Most computers only have one power supply, so this
# is normally set to 1. You need a pretty big or special box to have any
# other value here.
For example:
MONITOR ups@192.168.1.10 1 monuser password slave
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 vi nut.conf
MODE=netclient
- sudo systemctl enable nut-client
- sudo systemctl start nut-client
- sudo systemctl status nut-client
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