SD card wear – what’s already handled for you

[helioclock]

Running a display 24/7 off an SD card in a Raspberry Pi is historically a recipe for
premature card failure, so this was addressed at the software level
rather than left to chance: logs and temp files run in RAM
instead of writing to the card, journal logging is volatile instead
of persistent, swap is disabled entirely, and the filesystem is mounted
with options that skip unnecessary access-time writes. All of this
ships already configured – nothing to set up yourself.

Our standard SD card (not necessarily a special “endurance” rated
one) paired with these software-side mitigations should hold up well
for long-term 24/7 use. If you ever do need to replace a card, let us know.

[Author]

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