[Rspamd-Users] Raspberry Pi 64 bit Bullseye rspamd package

Martin Brampton martin at black-sheep-research.com
Sat Jan 14 16:03:14 UTC 2023

Thanks, Ged. It's getting a bit off topic, but I'm interested to hear of 
experiences with RPi etc.

Version 4 seems to have a lot more capability as a server than earlier 
versions. I've also tried Rock Pi 4A. The appeal of the latter was an 
option to use NVMe SSD.

However, on both systems I have been put off using eMMC, SD cards or USB 
memory, because of the rate of failure, normally total. And I went right 
off using NVMe SSD when I discovered that their power consumption was at 
least double an equivalent 2.5" SSD. Hence running very hot as well as 
wasting power. A bunch of 2.5" SSDs fit nicely in a toast rack bought 
from eBay for a few pounds! And the Rock Pi 4 can't easily boot from 
SSD. (It can in theory, but is messy and risky).

So I have finished up running small servers on RPi4 with UGreen 
enclosures and 2.5" SSDs, booting from the SSD (so no SD card or 
similar). I always assume that I can't (un)plug them while the system is 
on. Luckily I haven't seen any issues with power supplies, whether 
official or not.

Apart from SD card, eMMC, USB memory failures, the only failure has been 
a faulty SSD. It had steadily rising numbers of reallocated sectors 
until it failed completely, and the replacement is expected back from 
Samsung RMA (painful) any day now. Unfortunately that was the mail server.


On 14/01/2023 10:33, G.W. Haywood via Users wrote:
> You're right as far as you've gone, and we use Pis (many descriptions:
> several Zeros, a Pi2, half a dozen each Pi3B+ and Pi4 4G, and three of
> the Pi4 8G - plus we've been trying to get more of those for ages) for
> quite a number of things.  But experience here would suggest that they
> may not be reliable enough for something like a group mail server [1].
> My feeling is that there are some design problems with both the power
> supply arrangements and the USB circuitry which haven't been bedded in
> the earlier models.  We've developed an aversion to plugging in *any*
> USB device while a system is up, unless it's something like a keyboard
> which draws less than 10mA.  For some examples we won't even do that.
> On some devices, network over USB has been an unqualified disaster.

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