Nut upsuser - Sep 2024 - Nut-upsuser Digest, Vol 231, Issue 2

THIS IS systemctl list-units | grep UPS
  nut-driver at back-ups.service                                                
loaded active running   Network UPS Tools - device driver for NUT device
'back-ups'
  nut-monitor.service                                                           
loaded active running   Network UPS Tools - power device monitor and shutdown
controller
  nut-server.service                                                            
loaded active running   Network UPS Tools - power devices information server
  nut-driver.target                                                             
loaded active active    Network UPS Tools - target for power device drivers on
this system
  nut.target                                                                    
loaded active active    Network UPS Tools - target for power device drivers,
data server and monitoring clien                                                
t (if enabled) on this system



and this is UPSMON.CONF lines

# This file is auto-generated by openmediavault (https://www.openmediavault.org)
# WARNING: Do not edit this file, your changes will get lost.
MONITOR back-ups 1 monmaster 4L[p9<0Vi|Z>xKgK master
MINSUPPLIES 1
SHUTDOWNCMD "/sbin/shutdown -h +0"
NOTIFYCMD "/sbin/upssched"
POLLFREQ 5
POLLFREQALERT 5
HOSTSYNC 15
DEADTIME 555
POWERDOWNFLAG /etc/killpower
NOTIFYFLAG ONLINE SYSLOG+WALL+EXEC
NOTIFYFLAG ONBATT SYSLOG+WALL+EXEC
NOTIFYFLAG LOWBATT SYSLOG+WALL+EXEC
NOTIFYFLAG COMMOK SYSLOG+WALL+EXEC
NOTIFYFLAG COMMBAD SYSLOG+WALL+EXEC
NOTIFYFLAG SHUTDOWN SYSLOG+WALL+EXEC
NOTIFYFLAG REPLBATT SYSLOG+WALL+EXEC
NOTIFYFLAG NOCOMM SYSLOG+WALL+EXEC
NOTIFYFLAG FSD SYSLOG+WALL+EXEC
RBWARNTIME 43200
NOCOMMWARNTIME 300
FINALDELAY 5

________________________________
From: Nut-upsuser <nut-upsuser-bounces+princemodey=hotmail.com at
alioth-lists.debian.net> on behalf of nut-upsuser-request at
alioth-lists.debian.net <nut-upsuser-request at alioth-lists.debian.net>
Sent: Saturday, September 7, 2024 2:00 PM
To: nut-upsuser at alioth-lists.debian.net <nut-upsuser at
alioth-lists.debian.net>
Subject: Nut-upsuser Digest, Vol 231, Issue 2

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Today's Topics:

   1. Re: NUT shutsdown my UPS after a period of time even when
      power is back (Roger Price)
   2. Re: NUT shutsdown my UPS after a period of time even when
      power is back (Roger Price)
   3. Re: Nut-upsuser Digest, Vol 231, Issue 1 (Heath Smith)


----------------------------------------------------------------------

Message: 1
Date: Fri, 6 Sep 2024 17:32:57 +0200 (CEST)
From: Roger Price <roger at rogerprice.org>
To: Mega DooOooM via Nut-upsuser <nut-upsuser at alioth-lists.debian.net>
Subject: Re: [Nut-upsuser] NUT shutsdown my UPS after a period of time
        even when power is back
Message-ID: <6e8e5fa-584d-5a4f-a6d-39fbd4569e79 at rogerprice.org>
Content-Type: text/plain; charset="iso-8859-1";
Format="flowed"

On Fri, 6 Sep 2024, Mega DooOooM via Nut-upsuser wrote:
> OS: Openmediavault 7.4.7-1
> NUT version: 7.0.4-1
? NUT is currently at version 2.8 .
> Intalled from OMV plugin installer
> MY UPS: APC BX1200MI-GR
>
> my problem that i need help with is as follow:
>
> so what's happening is if my gaming PC / router / switch are connected
and power is down
> the UPS switches normally without issues from AC to battery and vice versa
when the power is back to the UPS
>
> BUT when you add the SERVER PC and NUT commands the SERVER PC to shut down
here where the problem occurs the UPS switches to battery mode
> and NEVER switches back to AC mode even though the power is back
> and what is worse is that the UPS restarts itself after about 2 to 3 min
> i'm contacting?you directly because NUT is the reason for the issue IDK
if it is a bug or intended?
> and in your documentation i saw that upsmon is the one controlling the UPS
and i don't see how to properly do it when NUT command my
> SERVER PC to shut down after 15 sec when on battery and the server pc which
has upsmon is off
> what i want the UPS to do:
> After NUT commands My server to shut down i want my UPS to keep running
because there are other equipments connected to the UPS that i
> don't want them to shut down and also i want the UPS when the power is
back to switch back to AC mode without needing to power cycle
> itself and shutting down my ROUTER and gaming PC with it
It would be good to see your file upsmon.conf to get a better understanding of
what is happening.  Leave out the comments in that file.

Roger

------------------------------

Message: 2
Date: Fri, 6 Sep 2024 17:46:57 +0200 (CEST)
From: Roger Price <roger at rogerprice.org>
To: Mega DooOooM via Nut-upsuser <nut-upsuser at alioth-lists.debian.net>
Subject: Re: [Nut-upsuser] NUT shutsdown my UPS after a period of time
        even when power is back
Message-ID: <83fe51a6-439-8bfe-91d8-59e0e2c61ade at rogerprice.org>
Content-Type: text/plain; format=flowed; charset=US-ASCII

If your setup uses systemd, it would be good to see the result of command

    systemctl list-units | grep UPS

Roger



------------------------------

Message: 3
Date: Fri, 6 Sep 2024 13:27:38 -0400
From: Heath Smith <heathjsmith at gmail.com>
To: nut-upsuser at alioth-lists.debian.net
Subject: Re: [Nut-upsuser] Nut-upsuser Digest, Vol 231, Issue 1
Message-ID:
        <CADZ59oCzsRJt3C9tXhDCaGFWuYi_fXtQhYWJR0KRxAseZjWpmA at
mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

As fast as I know, the standard NUT package will not command your power
supply off unless customizations are made. Devices like Synology have an
option to command the UPS off. What is acting as your NUT server? Your
server PC?

On Fri, Sep 6, 2024, 11:10 AM <nut-upsuser-request at
alioth-lists.debian.net>
wrote:
> Send Nut-upsuser mailing list submissions to
>         nut-upsuser at alioth-lists.debian.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
>
> https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser
> or, via email, send a message with subject or body 'help' to
>         nut-upsuser-request at alioth-lists.debian.net
>
> You can reach the person managing the list at
>         nut-upsuser-owner at alioth-lists.debian.net
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Nut-upsuser digest..."
>
>
> Today's Topics:
>
>    1. NUT shutsdown my UPS after a period of time even when power
>       is back (Mega DooOooM)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 6 Sep 2024 12:53:19 +0000
> From: Mega DooOooM <princemodey at hotmail.com>
> To: "nut-upsuser at alioth-lists.debian.net"
>         <nut-upsuser at alioth-lists.debian.net>
> Subject: [Nut-upsuser] NUT shutsdown my UPS after a period of time
>         even when power is back
> Message-ID:
>         <
> GV2PR02MB880089D12E4D543750BC1CCDB69E2 at
GV2PR02MB8800.eurprd02.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> OS: Openmediavault 7.4.7-1
> NUT version: 7.0.4-1
> Intalled from OMV plugin installer
> MY UPS: APC BX1200MI-GR
> connected through USB
> all of my UPS data are in this screenshot
>
>
> my problem that i need help with is as follow:
>
> so what's happening is if my gaming PC / router / switch are connected
and
> power is down
> the UPS switches normally without issues from AC to battery and vice versa
> when the power is back to the UPS
>
> BUT when you add the SERVER PC and NUT commands the SERVER PC to shut down
> here where the problem occurs the UPS switches to battery mode and NEVER
> switches back to AC mode even though the power is back
> and what is worse is that the UPS restarts itself after about 2 to 3 min
> i'm contacting you directly because NUT is the reason for the issue IDK
if
> it is a bug or intended
> and in your documentation i saw that upsmon is the one controlling the UPS
> and i don't see how to properly do it when NUT command my SERVER PC to
shut
> down after 15 sec when on battery and the server pc which has upsmon is off
> what i want the UPS to do:
> After NUT commands My server to shut down i want my UPS to keep running
> because there are other equipments connected to the UPS that i don't
want
> them to shut down and also i want the UPS when the power is back to switch
> back to AC mode without needing to power cycle itself and shutting down my
> ROUTER and gaming PC with it
>
> i'm not a professional with coding i can only edit some config files to
> match my usage and i desperately need you help
> Thanks in advance.
>
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On Sat, 7 Sep 2024, Mega DooOooM via Nut-upsuser wrote:
> and this is UPSMON.CONF lines
> 
> # This file is auto-generated by openmediavault
(https://www.openmediavault.org)
> # WARNING: Do not edit this file, your changes will get lost.
> MONITOR back-ups 1 monmaster 4L[p9<0Vi|Z>xKgK master
> MINSUPPLIES 1
> SHUTDOWNCMD "/sbin/shutdown -h +0"
> NOTIFYCMD "/sbin/upssched"
> POLLFREQ 5
> POLLFREQALERT 5
> HOSTSYNC 15
> DEADTIME 555
> POWERDOWNFLAG /etc/killpower
> NOTIFYFLAG ONLINE SYSLOG+WALL+EXEC
> NOTIFYFLAG ONBATT SYSLOG+WALL+EXEC
> NOTIFYFLAG LOWBATT SYSLOG+WALL+EXEC
> NOTIFYFLAG COMMOK SYSLOG+WALL+EXEC
> NOTIFYFLAG COMMBAD SYSLOG+WALL+EXEC
> NOTIFYFLAG SHUTDOWN SYSLOG+WALL+EXEC
> NOTIFYFLAG REPLBATT SYSLOG+WALL+EXEC
> NOTIFYFLAG NOCOMM SYSLOG+WALL+EXEC
> NOTIFYFLAG FSD SYSLOG+WALL+EXEC
> RBWARNTIME 43200
> NOCOMMWARNTIME 300
> FINALDELAY 5
The EXEC flag with the NOTIFYFLAG says that when a NOTIFY event occurs, upsmon 
calls the program identified by NOTIFYCMD "/sbin/upssched".  Does this
program
have a configuration file?  Perhaps upssched.conf.  Could we see it?

Roger

PS - You dont have to repeat all the previous messages in the Digest.

Cheers, jumping into the discussion late from some travels, sorry.

In the original post, is the "Server PC" the OMV with NUT? Are any of
your
other machines running NUT (e.g. the `upsmon` client for shutdowns)?

What I guess may be happening is:

* OMV has the physical connection needed to monitor and command the UPS,
and its `upsmon` has `MONITOR` for it as `primary` (ex-`master`);
* by definition, such a "primary" instance in case of a power outage
(and
"critical state" of the UPS battery, definitions vary) is responsible
for
yelling "FSD" (Forced ShutDown) to all other "secondary"
clients connected
to tge same `upsd` data server (maybe none in your case), waiting for them
all (if any) to disconnect - presumably meaning they are going down, and
shuts down itself.
* With the "killpower" file in place (created as part of
"primary" FSD
handling), and some OS shutdown integration, it would also tell all
connected UPSes to power off (or power-cycle if power came back, aka "power
race condition", to avoid your systems staying down indefinitely), if the
UPS and its NUT driver agree how to support such behavior.

This seems aligned with what you see in practice.

One quick fix can be to change the OMV `MONITOR` mode to `secondary`
(ex-`slave`) so only it shuts down when power goes "bad".

Nuanced criteria for the latter, like time spent on battery, can be set in
`upssched` (as asked about by Roger). Default "bad"ness is defined by
UPS
itself claiming a low battery state, maybe also by remaining percentage
(depends on driver and device).

Hope this helps,
Jim Klimov
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