Carsten Aulbert
2023-May-17 08:50 UTC
[Nut-upsuser] Synthesize low batt (LB) fron SNMP UPS which does not support this?
Hi all, On 5/16/23 20:08, Carsten Aulbert wrote:> Idly browsing the client sources, I guess I could try to add our logic > here[1] and use [2] to gather the battery stats from our UPS and then > decide if this UPS is considered critical or not. But for this, I would > need to dust off/excavate my ancient poor C knowledge ;-). > > I guess I will give this a try unless someone has a brilliant idea and > could save my sanity.I've given it a try now and would like to get some feedback whether this is something worth considering as a PR or if this is too niche for master: https://github.com/networkupstools/nut/compare/master...carsten-AEI:nut:upsmon_low_bat_enhancement?expand=1 Cheers Carsten -- Dr. Carsten Aulbert, Max Planck Institute for Gravitational Physics, Callinstra?e 38, 30167 Hannover, Germany, Phone +49 511 762 17185 -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 4827 bytes Desc: S/MIME Cryptographic Signature URL: <http://alioth-lists.debian.net/pipermail/nut-upsuser/attachments/20230517/5a8de266/attachment.bin>
Jim Klimov
2023-May-17 18:02 UTC
[Nut-upsuser] Synthesize low batt (LB) fron SNMP UPS which does not support this?
Makes sense, and a PR is a way to solicit feedback :) I'd document this for ups.conf (man page and examples), including a note that for devices which do provide a healthy LB these values may be set to 0 safely. Wondering if non-zero defaults should be there anyway. @Community, WDYT? Also, this critical-state check should be done only when the UPS is on battery (and perhaps not calibrating), to avoid shutdowns as soon as we start after an outage :) (In a similar fashion, enterprise UPSes are known to raise an FSD to their subscribers, if manually powered on before criticality thresholds are cleared, since they can't guarantee a safe shutdown to keep data intact, if wall power gets lost again). Thanks, Jim On Wed, May 17, 2023, 10:50 Carsten Aulbert <carsten.aulbert at aei.mpg.de> wrote:> Hi all, > > On 5/16/23 20:08, Carsten Aulbert wrote: > > Idly browsing the client sources, I guess I could try to add our logic > > here[1] and use [2] to gather the battery stats from our UPS and then > > decide if this UPS is considered critical or not. But for this, I would > > need to dust off/excavate my ancient poor C knowledge ;-). > > > > I guess I will give this a try unless someone has a brilliant idea and > > could save my sanity. > > I've given it a try now and would like to get some feedback whether this > is something worth considering as a PR or if this is too niche for master: > > > https://github.com/networkupstools/nut/compare/master...carsten-AEI:nut:upsmon_low_bat_enhancement?expand=1 > > Cheers > > Carsten > > -- > Dr. Carsten Aulbert, Max Planck Institute for Gravitational Physics, > Callinstra?e 38, 30167 Hannover, Germany, Phone +49 511 762 17185 > _______________________________________________ > Nut-upsuser mailing list > Nut-upsuser at alioth-lists.debian.net > https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://alioth-lists.debian.net/pipermail/nut-upsuser/attachments/20230517/dedd4539/attachment.htm>
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