Peter;172982 Wrote: 
> But it sounds like your data is still in danger. What happens if you or
> 
> one of your family make a mistake and delete the five years of family
> photos
> and *fail to notice*. Wouldn't the NAS backup faithfully overwrite the
> 
> previous backup and delete the photos?

My thoughts as well.  Automated disk/folder syncs are a kind of
poor-man's backup plan and are subject to failures exactly like this. 
The problem is that this type of backup only guards against hardware
failure and fails to guard against file corruption and human error.

If you're going to have two backups done via sync, don't have more than
one of them done automatically on a daily basis.  Do the other manually
only after you're certain the data is complete and non-corrupted.  That
one probably only needs to be done once or twice a month and be a
safeguard against something happening to both the original and the
backup.  It should probably also be kept offsite to guard against fire
or theft.


-- 
JJZolx

Jim
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