I have been using emoncms since 2012. I had so many problems with SD cards in the early days I switched my original install to a USB hard drive.
I have now built a new system using the latest image and transferred all data successfully. Does anyone think It is it necessary to run a hard drive with the current version of emoncms low write 9.7.2.?
I would rather not use a hard drive as I am running on solar power and want to keep power consumption as low as possible.
Our pre-built SD cards run the root FS in read-only with careful control over the write limit in the data partition. We have been running these setups successfully for over 3 years with no dead SD cards reported.