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Corrupt rain data after power failure

Discussion specific to Oregon Scientific weather stations
CaptJack
Posts: 12
Joined: Mon Jan 11, 2016 12:35 pm
Weather Station: Davis VP2 Pro
Operating System: Windows 7 Pro
Location: Menstrie, Scotland

Corrupt rain data after power failure

Postby CaptJack » Sat Jan 16, 2016 3:08 pm

We've had several power failures in quick succession here today and I've just noticed that the rain data is wrong. We've not had any rain today yet Cumulus is reporting 24.1mm today with a time around the power cuts.

I've attached 2 screen snippets of the above but haven't included any other file although I can do if I know which ones to upload.

Can someone tell me how I can correct this data? There are 5 backup folders for today.

I'm using Cumulus 1.9.4 Build 1099 on Windows 7 Pro

Thank you
Peter
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steve
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Re: Corrupt rain data after power failure

Postby steve » Sat Jan 16, 2016 5:09 pm

There is information in the FAQ about correcting rainfall data - to correct today's total use the editor built into Cumulus. You may just be able to 'rewind' to a point before the problem using the files from one of the backup folders (copy ALL of the files from the chosen backup folder to the data folder, with Cumulus stopped), but this depends on the type of weather station - your profile says Davis, but this is the Oregon Scientific section. You can at least retrieve alltime.ini and monthlyalltime.ini from a backup folder, even if you can't do a full 'rewind'.

If you zip up the diags folder and attach it, I may be able to see what happened. It may just be down to a file corruption if the PC lost power while it was writing to a file, assuming it wasn't something the station did as a result of the power loss.
Steve
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Please read the posts in the Announcements section about the current status of Cumulus development now that I have retired

CaptJack
Posts: 12
Joined: Mon Jan 11, 2016 12:35 pm
Weather Station: Davis VP2 Pro
Operating System: Windows 7 Pro
Location: Menstrie, Scotland

Re: Corrupt rain data after power failure

Postby CaptJack » Sat Jan 16, 2016 9:14 pm

Hi Steve
Diags folder as requested. I'll also look at the FAQ.

My profile is correct I have a Davis Pro2, not sure how my post ended up in the Oregon Scientific section. Clearly carelessness on my part. Sorry :oops:

The power failure didn't affect the console as that is plugged into a UPS, unfortunately the laptop wasn't (it is now).

Regards
Peter
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steve
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Joined: Mon Jun 02, 2008 6:49 pm
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Re: Corrupt rain data after power failure

Postby steve » Sun Jan 17, 2016 9:32 am

The problem happened because the Davis DLL was unable to determine the type of rain gauge when Cumulus started up at 14:32. I'm not sure what it would use as a default in that case, but it meant that it calculated the rainfall incorrectly for that run. It was OK again on the following start up at 14:38, so the rain total was correct again, but by then the damage had been done. So the simplest solution would have been (and may still be) to 'rewind' using the backup files created at 14:32

16/01/2016 14:32:43.903 : Creating backup folder C:\Cumulus\backup\20160116143243\
Steve
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Hosting available for Cumulus web sites. See http://sandaysoft.com/forum/viewtopic.php?f=2&t=11876

Please read the posts in the Announcements section about the current status of Cumulus development now that I have retired

CaptJack
Posts: 12
Joined: Mon Jan 11, 2016 12:35 pm
Weather Station: Davis VP2 Pro
Operating System: Windows 7 Pro
Location: Menstrie, Scotland

Re: Corrupt rain data after power failure

Postby CaptJack » Sun Jan 17, 2016 12:07 pm

Thanks Steve. I appreciate the prompt response :clap:

We had another power failure in the early hours but this time I was able to shutdown Cumulus gracefully before the UPS ran out.


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