At the end of each day I run this Allway Sync app that makes both two way and one-way syncs of my folders to an external 320GB Samsung HDD. I don't propagate deletions for my photos and videos, so they accumulate forever. For all the other folders, I propagate deletions and modifications.
Every couple of months or so I mirror this daily use external HDD with another one I have just to avoid any risk involving hardware failure.
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At the end of each day I run this Allway Sync app that makes both two way and one-way syncs of my folders to an external 320GB Samsung HDD. I don't propagate deletions for my photos and videos, so they accumulate forever. For all the other folders, I propagate deletions and modifications. Every couple of months or so I mirror this daily use external HDD with another one I have just to avoid any risk involving hardware failure.