Everything I am doing is on a path to take as much off the SD card as logical and possible so that on the day the SD card does die I can just swap it out for a cloned SD card and it can pick up where it left off. Once I have it working like that I will share the solution in its entirety so it could just work with a simple home NHS setup for the average person.
(unless this is pointless - does hosting your own emoncms server store a copy of the data on the server in mysql or something? so if the SD card dies it can just be set up again and then pick up where it left off?)
Logs, from what I can see, are now being replicated from RAM onto a file share so I won’t need to worry about loss of logs again.
(1) pipafina 10s fixed interval is what all feeds are on. All feeds are the standard supped interfaces for the equipment supplied for solar. 2CT leads, Voltage meter, LED counter.
(3) it looks like the feeds stopped logging to the local sd card.
MONTH VIEW OF USE FEED:
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The devices here are hooked up to the same NTP server so I think the odds of this being a time sync issue being reduced, especially as the browser of a client machine looking at the page served by the emonpi’s webber er shouldn’t be able to affect things like this.
I will not be in the position I’m in now if this happens again as I will have logs and I will take more screen grabs. I remember checking the feeds page that night before the reboot and the update interval was red and just a hyphen. I clicked to refresh but it did nothing. It was so late I the evening I chose to reboot 
Thanks for your help here and suggestions. Hopefully one of the names you’ve tagged with be able to shed some light on what may have happened.
