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

 

Synology UPS NUT

Used configuration Synology UPS NUT:

Synology NAS connected via Dataport to APC Back-UPS ES 700.

Synology DSM 6.1 en 6.2

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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