Hi
Have a memory stick that contains all weather data since January and now it has gone faulty and I have replaced it with a new one
Does anyone know if it is possible to recover this data and reload it onto my new stick
Put stick into PC and message said it is not formatted but this is maybe that it connot be read by a PC running windows?
Any help will be much appreciated
Data recovery
Moderator: Mattk
Re:Data recovery
It may be possible to recover your raw data if it isn't damaged. I had a thumb drive fail and I recovered three months of data.
The thumb drive is in Linux Ext3 format so you must use a Linux reader program. I used Linux Reader 1.1 from: http://www.diskinternals.com/download.shtml (it's even free!) as the several other Linux readers programs I first tried wouldn't access the necessary partition on the thumb drive to get to the raw data.
The raw data is as a file named raw in the monthly dated folders under the /weather/ folder (I forget which partion it was in). The monthly folders have a naming format of 200901, 200902, etc. You will want to transfer each folder and its raw file content to your new NSLU2 thumb drive through the Samba access.
After you have transferred all the recovered folder, I would advise going to the Inspect Data page on the Meteohub and selecting a date and time in each month (I guess it really doesn't matter when) and then doing a Cleanup Data on it which fixes the data for the month you were viewing. I think this fixes any bad formatting that might have occurred as a result of the thumb drive failure. This step probably can't fix badly corrupted data, but might repair any minor problems that might have occurred.
If you have any graphs, you may also be able to recover the *.mg definitions from the /graphs/ folder.
Then I guess you should do a dreaded data recompute. If you have excessively high system loads during the recompute (say 5-12 or higher range), you probably have corrupted data that the Cleanup Data didn't fix. :( It might require looking in the logs for the dates and times of the bad data (in your local time) and then deleting that bad data (listed in GMT time) in the Inspect Data page. I didn't have to do this.
If this goes well, I would then advise making a back up copy of each RAW weather folder on your computer and periodically making copies of the new monthly folder RAW data in case you should have another thumb drive failure.
Good Luck. Let us know how this turns out. I was able to recover raw data and graph definitions. I also had made a "restore settings" back up file that I used in the restoration too.
The thumb drive is in Linux Ext3 format so you must use a Linux reader program. I used Linux Reader 1.1 from: http://www.diskinternals.com/download.shtml (it's even free!) as the several other Linux readers programs I first tried wouldn't access the necessary partition on the thumb drive to get to the raw data.
The raw data is as a file named raw in the monthly dated folders under the /weather/ folder (I forget which partion it was in). The monthly folders have a naming format of 200901, 200902, etc. You will want to transfer each folder and its raw file content to your new NSLU2 thumb drive through the Samba access.
After you have transferred all the recovered folder, I would advise going to the Inspect Data page on the Meteohub and selecting a date and time in each month (I guess it really doesn't matter when) and then doing a Cleanup Data on it which fixes the data for the month you were viewing. I think this fixes any bad formatting that might have occurred as a result of the thumb drive failure. This step probably can't fix badly corrupted data, but might repair any minor problems that might have occurred.
If you have any graphs, you may also be able to recover the *.mg definitions from the /graphs/ folder.
Then I guess you should do a dreaded data recompute. If you have excessively high system loads during the recompute (say 5-12 or higher range), you probably have corrupted data that the Cleanup Data didn't fix. :( It might require looking in the logs for the dates and times of the bad data (in your local time) and then deleting that bad data (listed in GMT time) in the Inspect Data page. I didn't have to do this.
If this goes well, I would then advise making a back up copy of each RAW weather folder on your computer and periodically making copies of the new monthly folder RAW data in case you should have another thumb drive failure.
Good Luck. Let us know how this turns out. I was able to recover raw data and graph definitions. I also had made a "restore settings" back up file that I used in the restoration too.
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southfield
- Fresh Boarder
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- Joined: Mon Dec 29, 2008 12:18 pm
Re:Data recovery
Still trying to locate weather data on memory stick,can see lots of folders and files but none with any weather data in them.
Can anyone suggest where they might be located
Can anyone suggest where they might be located