I also have a (small form factor) USB stick in the Pi4.

You can also connect an (external) USB SSD and rsync to it, and rsync
(at least $HOME) to an external box.

It's also helpful to clone the SD card and put it in save place, maybe
even tape it to the box.

el

On 03/02/2021 19:58, Dennis Lee Bieber wrote:
> On Tue, 2 Feb 2021 21:39:40 +0000, Chris Green  declaimed the
> following:
>
>> I have to say that I regard SD cards in Pis (or anywhere else for that
>> matter) as 'throw away when they break' devices.  The whole thing (Pi
>> + SD card) costs so little.  On the other hand I've not managed to
>> actually break either a Pi or an SD card yet! :-)
>
>  I did kill an SD card... I had managed to compile and run the HINT
> benchmark suite (had to tweak the parameters a lot -- the examples were
> listed from back in the days of 233MHz Pentiums, and a 1+GHz processor just
> overran the benchmark) -- using free space on the SD card for swap. After
> that I configured a USB hard drive for swap...
>
>


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