Glenn, Even the usb stick will wear out if I write every 5 minutes i assume. Is there way to wrote out from memory to usb say every 1 hour and restore from usb on power up. That will extend the usb stick lifetime significantly. Or is this a rorpi discussion :) I found how to backup to usb in your page but couldn't find restoring on power up.
Regards, Praveen On 30 Jan 2018 5:47 a.m., "Glenn McKechnie" <[email protected]> wrote: > > > > On 29 January 2018 at 22:24, Praveen Chandrasekaran < > [email protected]> wrote: > >> I think backing up to a USB stick say once or twice in a day should do. >> Glen has instructions on how to set it up and I do have a lot of USB sticks >> lying around. That would ensure that on next powerup I dont have to restore >> more than a day's worth of data. >> > > Or even better yet just forget about the memory database and write the > database directly to a mounted drive. It's far safer. Maybe it's still not > foolproof if you're having power issues, but it is much more robust. > > Reconfigure /etc/fstab to mount the stick or HDD somewhere permanent. > Edit the DatabaseTypes section in /etc/weewx.conf to point to that new > drive. > > [DatabaseTypes] > ยทยทยทยท > # Defaults for SQLite databases > [[SQLite]] > driver = weedb.sqlite > # Directory in which the database files are located > SQLITE_ROOT = /mnt/my_usb_mounted_drive/weewx > > And then continue backing up that database! (of course!) > > I'd hasten the RTC addition, and when you do set that up make sure that it > actually works when the network is disconnected. Correct time is an > essential for weewx, it's the primary key in the database for starters. > > If you have any questions on implementing any of the above, then I'll see > you back over at rorpi discusion :-) > > > -- > > Cheers > Glenn > > rorpi - read only raspberry pi & various weewx addons > https://github.com/glennmckechnie > > -- > You received this message because you are subscribed to a topic in the > Google Groups "weewx-user" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/weewx-user/XYmglRBbWrg/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- 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.
