Moving the NAS to ZFS mirrors
Finally replaced the old RAID5 array with two mirrored vdevs. Resilver on 4 TB drives took about six hours.
Lesson learned: set ashift=12 at pool creation, you can't change it later.
field log
Notes on home labs, Linux and small hardware projects. Mostly for future me.
Raspberry Pi as a temperature logger
A DS18B20 sensor, twenty lines of Python and a cron job. Data goes to a SQLite file, graphs are rendered once an hour. Power draw stays under 2 W.
Notes on unattended upgrades
Enabled automatic security updates on all Debian boxes. Remember to whitelist only the security origin and to
set Automatic-Reboot-Time to something sane.
Soldering a new keyboard PCB
Hot-swap sockets were the right call. Took an evening; the stabilizers took another one.