[arm-allstar] RPI with 3 FOBs

Doug Crompton wa3dsp at gmail.com
Wed Sep 12 10:36:42 EDT 2018


 We usually do not recommend more than two USB FOB's per Pi but that was
not because of Pi crashes like you are seeing but rather because of the
potential of causing audio glitches when all were active.

You did not mention what version of software you were running at these
sites? Are you doing updates? The latest is V1.5.3-42. Also what FOB's and
what Pi's? 2B, 3B, 3B+?   What power supply and are you using UPS's? Is the
power quality at the sites good?

Since as you say this seems to happen as a slowing of SSH can you run some
tests at that time like  cpu_stats.sh, free, or top to see CPU and memory
usage. Also do you have any other programs or scripts running you installed
running on these servers?

*73 Doug*


*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*

On Wed, Sep 12, 2018 at 10:26 AM "Roger Coudé via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> Our network uses 22 Raspberry PI spread all over the province of Québec.
> 11 RPIs with 1 radio
> 7 RPIs with 2 radios
> 3 RPIs with 3 radios
> At locations where we have 3 sound cards per RPI, we experienced a lot of
> trouble (computer frozen, very slow ethernet, corrupted SD, missing sound
> card in LSUSB list, etc)
> Those systems are running ok for a few days, but then the SSH begin to be
> very slow, and after a few hours the repeater freezes.
> Most of the time, the systems reset by itself around midnight (Strange
> because I have not programmed it for that).
> After swapping RPIs, power supply, sound cards, we always get an instable
> situation.
> We had to climb mountains many times, sometimes just to power cycle a
> jammed RPI :(
> We plan to install a second RPI at those locations in order to never have
> more than 2 sound cards per RPI.
> Has anybody encountered the same situation, have a solution for that…
> 73
> Roger VE2DBE
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