[CentOS] Mirroring Hard Drive

William L. Maltby CentOS4Bill at triad.rr.com
Sun Dec 7 22:22:17 UTC 2008


On Sun, 2008-12-07 at 16:04 -0600, Les Mikesell wrote:
> William L. Maltby wrote:
> ><snip>

> > Am I missing something? Just old fashioned? Cpio has all the params you
> > want and can be _very_ fast with the righ parameters. Similar to the
> > above dump/restore set I've seen many use tar/untar equivalents.
> 
> Or, on everything that has gnu cp (which would be at least every linux 
> distro), 'cp -a . /mnt' should work.   However, I usually use rsync 
> since you can stop and restart keeping the completed work or repeat to 
> get updates, and it works the same over ssh if the drive in question is 
> on a different machine.

Yep. I've recently began using rsync for several types of "local" copy,
usually back-up related. I can't recall if the "cp -a" detects and
handles hard-links to minimize space requirements though. I know cpio
can/does. I guess I'll have to read up on cp some more and see if it
leaves the access times alone (cpio parameter allows retaining that) and
handles hard-links efficiently.

-- 
Bill



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