[DM-MUG] Back up and clone

[Arne Quanbeck]

Ray,
This is essentially correct. A backup could include invisible files,  
but often backups are restricted to document files. A clone is  
designed to produce the exact contents of your drive so that you  
could simply boot from your cloned drive and continue your work.

For example, a tape drive could have a complete backup, but you  
couldn't have a bootable drive (at least not if you wanted it to boot  
this decade). The backup would have to be restored to a working  
drive, whereas a clone would already be on a potentially bootable drive.
Arne

On May 22, 2007, at 10:16 PM, Ray Bowler wrote:

> I was asked after the meeting tonight what the difference was  
> between back up and a clone. I may not have answered well but my  
> understanding is that if you just back up you will get only the  
> visible files and you will not be able to make the drive bootable.  
> A clone uses root authority to copy the invisible as well as the  
> visible files. This drive can be "blessed" so that it can be used  
> as a boot drive. Several programs (superDuper, Disk Utility, Carbon  
> Copy Cloner) can make the drive  bootable after the clone is one.
>
> Does anyone with more expertize wish to elaborate on this?
> -- 
> Ray Bowler
>
> rbowler.home.mchsi.com
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