Hi Martin,

> Does anyone here have experience with this kind of setup? There seems to be
> a lot of anecdotal evidence suggesting that USB sticks are unreliable, but
> the little actual research on this topic I can find suggests otherwise [2].

My TP-Link MR3220 has been running with a 1GB no-name usb pen drive
hosting an extroot-filesystem for about 2,5 years now without any
problems - my uptime record was about 500 days (power outage) - I
however disabled autovacuum of postgresql to reduce write load.

Some advice:
- When you buy a flash-based usb drive, keep an eye on random write
performance, which is in this scenario way more important than
sequential write. There are drives out there which only do a single 4k
write per second, which guarantees no-fun ;)
- Keep in mind this is consumer hardware. Despite having not
experienced any problems, I do regular backups using samba shares.

Regards, Clemens
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