No Issue here really, just wondering if I should consider a more durable SD card for my setup or an eMMC. I have a Pine64 board that was $20 a few years ago. It's overkill really for this purpose but I run debain linux with pihole and a dynamic dns service and that's it. Wondering if PiHole is doing much writing to the SD card at all or mostly just "functioning" from it. TIA.
Pi-hole is not particulary hard on SD cards. I have multiple Pi's running Pi-hole for 4+ years continuously with no problems.
If SD card wear is a concern to you, there are options offered in Pi-hole to reduce or eliminate most logging to the SD card.
Disable query logging to the query database by setting the parameter
in file /etc/pihole/pihole-FTL.conf
- To disable logging to the dnsmasq log at /var/log/pihole.log, use the web admin GUI > Settings > System > Disable query logging. Note that if you do this, you lose the ability to live tail the log.
A agree with @jfb I have a Pi-hole running with the same SD card over 4 years and Pi-hole running in various configurations, native, docker, using Cloudflare proxy, using DNScrypt proxy, etc. The key is to use a reliable SD card in the Pi.
There are a lot of good articles out there of how to reduce wear on the SD card:
Here's my running services, what can I disable safely?...
dietpi@DietPi:~$ sudo systemctl --type=service --state=running UNIT LOAD ACTIVE SUB DESCRIPTION cron.service loaded active running Regular background program processing daemon ddclient.service loaded active running Update dynamic domain name service entries dropbear.service loaded active running LSB: Lightweight SSH server email@example.com loaded active running Getty on tty1 haveged.service loaded active running Entropy Daemon based on the HAVEGE algorithm lighttpd.service loaded active running Lighttpd Daemon pihole-FTL.service loaded active running LSB: pihole-FTL daemon serial-getty@ttyS2.service loaded active running Serial Getty on ttyS2 systemd-journald.service loaded active running Journal Service systemd-udevd.service loaded active running Rule-based Manager for Device Events and Files vmtouch.service loaded active running vmtouch
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