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Making a Linux home server sleep on idle and wake on demand (2023)

(dgross.ca)
294 points AgaoAnar | 2 comments | 02 Sep 25 19:42 UTC | HN request time: 0.969s | source
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pmontra ◴[03 Sep 25 05:34 UTC] No.45112517[source]▶
I considered doing something like that but eventually I went for the simpler solution of plugging my little servers into smart plugs. I shut them down, then power off the plug over wifi. I start them by powering on the plugs. The plugs draw very little power. The servers are ARM SoC and draw 1 to 4 W. One of them has an HDD that draws about 10 W but I can unmount and power off it when I don't need that disk and I still need the server on (it's also got a SSD.)
replies(1): >>45115653 #
1. Liftyee ◴[03 Sep 25 13:38 UTC] No.45115653[source]▶
Sounds like a neat setup - can you self host the smart plug control (Home Assistant?), or do they connect to third party servers?
replies(1): >>45120534 #
2. pmontra ◴[03 Sep 25 21:19 UTC] No.45120534[source]▶
It's a Shelly S. Among the many ways to control it I'm using its local web server to turn on and off the power from my phone, and a curl to do it from my scripts. I'm also polling the url for reading the power level and know when a shutdown is complete, before turning off the power. I think it can be interfaced by home assistant and similar platforms but I never tinkered with them. Self made small scripts are more than enough for my use cases.