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Old 02-14-2026, 10:36 AM   #65
Stevex
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Quote:
Originally Posted by DNSB View Post
A bit oddly, I was under the impression that One Drive synced files in real time. To quote from Microsoft's documentation:


In my admittedly limited testing, with a small calibre library synced to One Drive, changes I made were synced in real time. Not using only the local file only until I finished but syncing in real <expletive deleted> time. I could click on the One Drive icon and pause syncing while I had calibre open or I could the calibre library to a directory that was not being synced and then copy it back afterwards. I played with batch files to do both of those but then went back to the safety of local use only with a backup to multiple locations when calibre was not running. If you want to take a look at the network activity, WireShark comes in handy.

BTW, if you don't mind my asking, what is your IT background?
I started off coding assembler in octal using punched cards - since you ask!
After that I was IT director, then a contractor and Microsoft MVP with C++ and Java. And now DB management on SQL Server / Azure. I don't know if that's too much information...

Anyway, just for the future, the internet interface to OneDrive has (a) a waste basket of deleted files, going back 30 days on the basic plan I think, and (b) a version history for each file. So you can go back to yesterday's, or last week's, db file if you have a problem. So these problems people had that you were talking about, should always be recoverable really.

Note I wasn't suggesting in any way not to have backups - I have an offsite hard disk backup of all my calibre libraries, which I make every month or so, though as I say I never needed to use it.

PS And I know about Wireshark, of course. But it's much easier to see what OneDrive is doing by logging into its web interface and watching the files version themselves

Last edited by Stevex; 02-14-2026 at 10:42 AM.
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