Good question, how do I access the UPS logs? In TrueNAS (and in home assistant) I just see the measured values.

Ahaa, so what you are saying that me seeing the input load on UPS is not the cause of the measured power consumption but just a “symptom”. That something (be it TrueNAS/rpi/switch) really draws more. How can I do a thorough analysis of what the devices do? Normally I check logs and htop and see they are just chilling. I check cpu, i/o and network and I thought that it should be pretty good indicator of if something is happening. Especially when its 6 Watts more thats like whole another rpi 😀

Same as above. The TP link that measure the power is plugged into the UPS not the other way around. The UPS is directly in the wall plug. So even if the UPS drawn 100 Watts it shouldn’t show on the TP Link.

But the TP link that measure the power is plugged into the UPS not the other way around. The UPS is directly in the wall plug.

Truly nothing. I haven’t set snapshots yet, I have TrueCloud backup but thats at midnignt. I have checked htop and there is virtually zero activity (same as when the power draw is 29 W). I have only two apps on truenas and they also didn’t do any indexing or anything). As mentioned above the only difference that I spotted so far is the ups input load and the times of event start/end match perfectly in all cases (but then again UPS is powering the tp plug and on, not the other way around).

If you are gonna go for TrueNAS, try Storj with TrueNAS Cloud task. TrueNAS made a partnership with Storj and the price is very good. https://www.truenas.com/truecloud-backup/

TlDr; The data is encrypted with restic and sent to Storj S3 storage that is further fragmenting it (and encrypting it too - so double encryption) into multiple pieces (with redundancy) and storing on other peoples TrueNASes (you can also provide your unused space btw and gain some small money back).

I am in process of setting this up (already run a working test backup) and I didn’t find anything that’s better than this integrated solution. Very cool!

I am in the same situation, looking how to use my 1st pi. I am already using AdGuard, Nginx and home assistant on my pi4, so I am looking for something more niche but very cool 😀

I did just that. I also put ssd to a flopy disk bay and I screwed one drive on the outside of the case 😀 works like a charm.