@
Ramo - I backup my calibre data (libraries, configuration and associated data) using an incremental backup regime, which is what I do for all my data -- documents, audio, photos, ebooks, video, playlists, scripts, etc. The advantages include:
- its fast because it only copies the data that changed since the last backup, which means you're more likely to do it more often - e.g daily.
- individual items can be restored, e.g a specific book, or even a particular format, rather than an entire library;
- because it is a mirror copy of the originals it can be used in exactly the same way as the original, i.e. calibre can process the backup libraries and the configuration data as if they were the originals - like when a disk drive fails;
- the regime is not specific to one program and its data, so if I were to take up gaming, I would backup my games in progress in exactly the same way.
I use a program called GoodSynch to do the backups (since 2006), other people do it with other programs - such Free File Synch and rsynch.
BR