Quote:
Originally Posted by Sirtel
I just remembered that the speed of FreeFileSync might depend on the settings. Mine are set to compare the file content, not only the size and modification time. That probably slows the whole operation down considerably.
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Yep, it does quite significantly. As far as I know, FFS does a bit-for-bit comparison meaning it essentially reads practically the entire 30GB on both source and destination when you sync (assuming you don't frequently change the actual ebook files for the bulk of your library via Polish or conversion or something).
If using compare by content method, there's pretty much no way FFS will be faster than Dropbox's differential sync. That's probably true even if you're just doing local HDD to HDD backups.