My Weewx (5.1) run on a Rpi400 (a RPi4 in the keyboard with 4 GB of memory) for a little more than 3 Years, without any glitch. The loop interval is 300 s, the dB server is mariadb/mysql on the Rpi. In addition and in parallel, I run 4 heavy batch programs (BOINC), so that the RPi is always (very) busy. The mean temperature of the cpu is ~60 centigrad, around 160 F. This is a lot but is very stable over time, avoiding thermal shocks. The SSD (129 GB) is hot too. It is 65 % full. No UPS (but we are in Switzerland with almost no power interruption).
The archive is 128 MB for 600 K records. It is backuped every day on two other server, not RPi... Further more, the data from the Tenpest weather station are also recorded on an other computer. >From experience, I found one major difference between various SSD, that is their power consumption. The one in use is a low consumer one. This system was build to stretch the RPi, may be overstretch, but until now, it runs perfectly. Hope this helps other ! regards, Paul Le Sunday, September 1, 2024 à 9:23:51 PM UTC+2, Tom Keffer a écrit : > Almost 10 years ago I started an experiment on how long an SD card can > last in the WeeWX environment. You can see the environment here > <https://www.threefools.org/weewx/status/index.html>. > > When the experiment started, Squeeze (Debian 6) on an RPi B+ was state of > the art. We've now gone on through 4 new generations of Pi's, and 6 > generations of Debian. > > I'm finally bringing the experiment to a halt today, just short of its > 10th anniversary, not because the card failed, but because the version of > ssh it uses is so obsolete that my cloud server refuses to accept a > connection any longer. > > I could install the latest version of Raspberry Pi OS, but I'd like that > corner of my desk back. > > Conclusion? There is no reason not use an SD card as your primary storage > if you do the following: > > - Get a good one. I used a SanDisk Extreme Plus, which is still > available. > - Buy a big one so the wear-leveling algorithm has lots of space to > work with. > - Use a UPS (Uninterruptible Power Supply). This cuts down on > electrical transients. > - Run a backup! > > -tk > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/c2a30b08-f210-4188-89a8-57a94a002075n%40googlegroups.com.
