> it will kill the card from IO cycles.

It might not. I have a Raspberry Pi 2 that has been running a weather station for over 12 years, and it has been on the original SD card. I have other RPi's doing dumb things around the house and I have never had an SD card failure.

YMMV and all that.

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kalaksi an hour ago | parent | next [-]

Yeah, I haven't had issues with SD cards in a long time. Many years ago (maybe 10), I think they weren't quite as good and I probably skimped too much when buying a card. RPi 1 also had power regulation issues. Now I only use higher tier cards and make sure there's enough free space for wear leveling and operations.

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robrtsql 2 hours ago | parent | prev | next [-]

My friend bought an ODROID and an SD card at the recommendation of some tech YouTuber for Home Assistant. Within 3 years the SD card was dead, and I had to help him re-set-up all of his stuff (this time, with a more resilient storage medium and remote backups).

YMMV certainly applies but I feel like the warning is important.

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paranoidrobot 2 hours ago | parent | prev [-]

I wouldn't put running a weather station in the same class of disk activity as running Home Assistant. It is writing a fairly large amount of logs, plus statistics for every attribute/sensor for every device. The more devices you have, the more you will be writing.

There are regularly threads from people with "I restarted HA and now I get this weird boot error message", and it's because their SD card died.

You do you, but it's common enough of a problem that I think it's worth calling out as a "Don't do this".

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zikduruqe an hour ago | parent [-]

I run HA on another RPi, so I am familiar.

On the weather station I wrote to the SD card 1,068,266 database records, along with all the nginx logs, etc...

> it's common enough of a problem

It's probably survivorship bias, where everyone complains about SD card corruption, while those with no issues really don't say anything. Well, except my comments today.

	▲	cossray 21 minutes ago \| parent [-]
		Fair point on survivorship bias. But, I think SD card being flash memory is technically expected to fail over time, with that failure compounded by the number of write cycles. These cycles are a spec of the SD card. If a section/page of the flash is being overwritten more frequently than the other, then surely it'll fail faster than an SD card whose erase/write cycles are distributed uniformly across all the sections/pages.