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Moode and power loss (aka writes to the sd card)
#6
(05-22-2023, 06:31 AM)jbaumann Wrote: I had something comparable to this (with multiple RPi‘s, each with their own little UPS, to control home automation, a media center, and a communications hub). But I have tried to reduce energy consumption as much as possible, and thus I changed the architecture to one N5105 (due to the RPi shortages) running multiple containers and VMs using Proxmox.

If I would follow your approach I still would want a UPS for that because I have experienced first-hand that  power losses can wreak havoc with your storage. This would change the average power draw to around 8-10W, which would add a substantial amount to my overall power consumption.

So, even while it might sound theoretical, does Moode support Overlay FS already in any way (apart from the kernel providing the functionality)?

Cheers, Joe

If Overlay OS is supported transparently by Linux, then moOde (or more correctly, Raspbian OS, for that matter...) should support it.
I don't know how it works, but as you mentioned something like: "commit to disc when necessary", sounds to me that you would probably provide a way for the OS to know "when" to do such commit...

If your dedication to power-saving is so high, I would possibly go to a relayed power-off solution using GPIO signals: you switch the Pi off, and it will help power-off all the remaining hardware in your chain...
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RE: Moode and power loss (aka writes to the sd card) - by Nutul - 05-22-2023, 07:29 AM

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