For mental health, I have been working on final tweaks to my monitoring scripts.
I moved them to a Raspberry Pi, so I could work on the phone system without disrupting monitoring.
The temperature monitoring script writes to a log every minute and I was concerned about stressing the storage, a micro SD card.
The long term permanence of this log is not important, as it is erased every day after the report is generated.
After some poking around, the easiest solution I found was to place the log file in /dev/shm.
Problem is that fine systemd clears /dev/shm, when a regular user logs out.
Solultion? edit /etc/systemd/logind.conf.
Change:
#RemoveIPC=yes
to
RemoveIPC=no
More to follow…