[clue-tech] Multiple system backups

[David L. Anselmi]

Angelo Bertolli wrote:
> David L. Anselmi wrote:
> 
>> Angelo Bertolli wrote:
>>>
>>> My main concern is hard drive failure.
>>
>> Then you want to back up to disk, DVDs are irrelevant.
> 
> So, the  chances of both hard drives going is negligable?

Yes, unless you use 2 drives produced in the same lot.  Even then you're 
likely to have at least a day between failures in which you back up the 
remaining disk.

Yes, unless you're worried about a fire getting both drives.  But you 
didn't mention taking the DVDs off-site (or keeping them secure when you 
get them there).  Even for that, the one place I do off-sites uses 
external hard drives.

Since rdiff is efficient over a network you might look at keeping your 
backup disk at a different location.  Generally backups across a WAN 
don't scale very well, but they might scale as well as manual copy to 
DVD does.

Dave
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