Of course. That’s what is to be expected on a power outage, isn’t it.
Read up ZRAM status - Tutorials & Examples - openHAB Community.
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Well that explains it then! Thanks for pointing this out. Seems like cloud persistence is a way for me then.
Ugh. I’d never make myself dependent on the Internet to work. But it’s your choice of course.
I get you. However until I can afford a UPS I don’t have that many options.
Take backups ?
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That goes without saying, yes
Apparently not so. With standard nightly backup you loose at most 1 day of persistence data in case of a power outage (which shouldn’t be too often), so what.
You could even setup a cron job to copy persistence data every minute if you feel that to be important.