On Fri, Aug 09, 2019 at 02:43:38PM -0700, Adam Thornton via cctalk wrote: > I did have a case where the Pi I was using as secondary DNS/DHCP and as the > secondary backup server (using USB spinning disk) destroyed its SD card. > > But then it turned out not to be the load at all. No matter what I ran on > that Pi, it would corrupt its SD cards in a matter of weeks (the symptom > was that the fourth bit of some bytes would just stick on). I assume it > was just something broken in the Pi itself.
The two usual suspects: - standard consumer sd cards don't do so well outside of their design use case (mostly cameras and media players) and I suspect a journaling FS (which is a perfectly reasonable default, usually ext4 these days, for Linux) is probably especially bad - so I recommend looking for industrial grade SD cards, they cost a little more, are usually only available in smaller sizes (I've seen 8, 16, 32 GB) but they tend to last a lot longer - sub-par power supply, having the power brown out a little is _bad_ for basically any kind of reliable operation - make sure your PSU can actually reliably deliver enough juice (ISTR the recommendation being 3+ amps), I suppose the "official" ones from the Pi foundation should be up to the job > (Traffic encryption via simh is incredibly painful. You have to turn login > delay waaaaay up to run NetBSD on VAX on a Pi if you want to be able to ssh > into it; the machine itself runs fine-ish, but the zillions of cycles to > encrypt the traffic swamps it in no time.) If you want to stick with the Raspberry Pi platform, what kind of Pi are you currently using? If it is a Pi 3, maybe try a Pi 4, that is noticeably beefier. Note: with the Pi 4, you have to use the official power supply and cable as they screwed up the USB-C side (by _not_ exactly copying the schematic in the specs, saving one resistor on the BOM with the result that high end cables will mis-recognize the Pi as an 'audio accessory' and not power it). > And, you know, if you manage to cause my SD cards in those machines to > fail, well, gosh, guess I'm out $10 or so for a new one. I'm not bothering > to back up any of the stuff inside 'em, I assume you've got a master image that you just write to a new SD card, replace card, power cycle Pi, done? Kind regards, Alex. -- "Opportunity is missed by most people because it is dressed in overalls and looks like work." -- Thomas A. Edison