Re: Simple way for web to execute root shell script.

On 28/05/2025 21:34, druck wrote:

On 28/05/2025 08:58, The Natural Philosopher wrote:

On 27/05/2025 21:44, druck wrote:
It does work with smartcl, Not with lm-sensors

 Sorry, picked up on the wrong part of the post.
 lm-sensors wont work with external USB drives as it only knows about things connected to the internal busses of a machine such as acpi and i2c, and the Pi only had the latter.
 If you really want to measure the disc's temperature using lm-sensors, you could attach a i2c temperature sensor to it and add a device tree entry so it is detected. See:-
https://www.bergzand.net/the-raspberry-pi-a-temperature-sensor-and-the-device-tree.html
 But unless you are using the external drive somewhere with an incredibly high ambient temperature, it's very unlikely to overheat. The only hard drive I had problems with was inside a DVR in a rack of other equipment in an enclosed space. I had to tweak the fan configuration to keep it under it's alert temperature of 55C.
 

The drives in question will be in an enclosure with the fanless Pi 4, and so far have peaked at over 60°C when they are rated only up to 70°C ambient.
And I have had issues under heavy load but I strongly suspect these are power supply related not temperature.The reason for the monitor is to try and see if there is any correlation between temperature  and temporary drive failure.
I will probably stick a scope on the USB power rails at some time to look for issues there.

---druck

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