Ayao "Alqualos" Kuroyuki (ayao) wrote,
Ayao "Alqualos" Kuroyuki

Google Drive file synchronization algorithm

I've just figured out another huge disadvantage of Google Drive. If a file is changed, Google Drive re-uploads the whole file again. Yes, that means that if you change 1 byte inside a 4 GB file, Google Drive will re-upload the whole 4 GB! I didn't bother to check this when I first tried it because I didn't even think about that possibility! Haven't Google heard about rsync? That's just ridiculous!

So using large TrueCrypt volumes in Google Drive is probably a bad idea. Its main use should be to store some random insensitive data like crappy photos that nobody wants to see anyway. For anything sensitive, something like Wuala should probably be used instead.
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