Nut upsuser - Nov 2014 - Belkin UPS, master netbook, slave MythTV server

Hi all,

I've finally gotten around to setting up the netbook that controls my 
UPS and I would like to make sure that I've got the metacode correct 
before configuring nut :)

Here's what I've got:
Belkin UPS F6C120auUNV

  * Batteries recently replaced
  * On battery: 24 port switch, PoE AP, antenna power booster, ADSL
    modem, MythTV server, 19" monitor
  * On surge protection: Netbook (details below)
  * I would like the UPS to turn off at 20% battery capacity

Netbook with Debian 7.7.0,

  * Attached via USB to Belkin UPS
  * Battery in netbook lasts three hours, it will outlast the UPS by a
    fair way, so does not need UPS battery supply
  * 'master' where upsd runs
  * runs upsc, upsd, upsmon, upsc, nut-cgi, apache, nagios

MythTV server with Ubuntu 14.04

  * plugged into Belkin UPS
  * to be turned off within 5 minutes of loss of supply
  * to be turned back on after 15 minutes of return of supply (WOL?)
  * 2xSSD drives, 1x4Tb 3.5", 1x250Gb 2.5"
  * 'slave' system

I'm digging through the nut documentation now, I'm sure that I can 
configure nut to do all of this... right?

Thanks,
Greg

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On Nov 14, 2014, at 6:16 AM, Greg Vickers <daehenoc at iinet.net.au>
wrote:
> Hi all,
> 
> I've finally gotten around to setting up the netbook that controls my
UPS and I would like to make sure that I've got the metacode correct before
configuring nut :)
> 
> Here's what I've got:
> Belkin UPS F6C120auUNV
> Batteries recently replaced
> On battery: 24 port switch, PoE AP, antenna power booster, ADSL modem,
MythTV server, 19" monitor
> On surge protection: Netbook (details below)
> I would like the UPS to turn off at 20% battery capacity
I'm assuming the "120" means "1200 VA", like this model:

http://buildbot.networkupstools.org/~buildbot/cayman/docs/latest/ddl/Belkin/Universal_UPS_F6C120-UNV.html

Depending on the UPS settings, you might be able to use upsrw to directly tell
the UPS to shut off at 20%, or you might need the "ignorelb" flag:

   http://www.networkupstools.org/docs/man/ups.conf.html
> Netbook with Debian 7.7.0, 
> Attached via USB to Belkin UPS
> Battery in netbook lasts three hours, it will outlast the UPS by a fair
way, so does not need UPS battery supply
> ?master? where upsd runs
> runs upsc, upsd, upsmon, upsc, nut-cgi, apache, nagios
Seems reasonable. One question which you may have already answered: what if the
UPS battery gets to 20% and upsmon signals a shutdown - how does the netbook
know how to turn back on later?

If the netbook doesn't have a way to boot back up automatically when the
power comes back, you might be able to find a cheap SBC or WiFi router with a
USB port, that can run NUT and act as the master. (A few people have discussed
using a Raspberry Pi for this.)
> MythTV server with Ubuntu 14.04
> plugged into Belkin UPS
> to be turned off within 5 minutes of loss of supply
> to be turned back on after 15 minutes of return of supply (WOL?)
> 2xSSD drives, 1x4Tb 3.5?, 1x250Gb 2.5?
> ?slave? system
> I'm digging through the nut documentation now, I'm sure that I can
configure nut to do all of this... right?
I think you want upsmon to trigger upssched for the "off after 5
minutes" requirement. I don't use upssched myself; hopefully someone
else can offer help if needed. If nothing else, we do have source code :-)

The soft shutdown/WOL part seems possible.

-- 
Charles Lepple
clepple at gmail



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