Re: Mirroring Hard Drive

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William L. Maltby wrote:
> 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.

Rsync -a covers most options except hardlinks - you need to add -H for 
that because it adds significant overhead to track them.

-- 
   Les Mikesell
    lesmikesell@xxxxxxxxx

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