Quick comment as someone who uses a good number of SD cards (a dozen or more at a time in daily use for the last 4-5 years).
I have a number of trailcams that I use for nocturnal wildlife surveillance and swap SDcards on a daily basis on from 2 to 7 cameras. In addition I use them for other things -- a Sony RX100 camera, Raspberry Pis (incl. weewx), Linux boot devices etc. I have found the quality of some brands to be first class (no failures yet) and some almost guaranteed to fail within a few months. In my experience the best cards I've used are SanDisk SDHC Class 4 8Gb and the worst, by a long way, Transcend HC1 16Gb. In fairness, perhaps, I have to say that I wondered if the Transcends were either fake or just a bad batch; only 1 of the last batch of 10 is still in use after about a year. Some devices seem harder on cards than others. My Samsung Chromebook is so bad that I no longer even try to use SD cards with it. The advice to use a ram drive is good. I'm still using an original SD card with my first Raspberry Pi 2+ years on. Database updates are logged to disk every 5 mins. Log files are written to my Synology NAS. Web page updates go to ram. I can't really see the need to install a hard disk. I've had outages for power cuts and WH1080 USB port lockups, nothing else. Bottom line (your mileage may vary): get a premium brand SD card and avoid using it as much as possible. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
