One-step tarring/scp (was Re: [ale] hardware to back up a Dell laptop)
James P. Kinney III
jkinney at localnetsolutions.com
Wed Jan 9 22:40:39 EST 2008
On Wed, 2008-01-09 at 18:13 -0500, Jim Popovitch wrote:
>
> rsync -e ssh -r -C localdir user at remote:dir
>
> Redundant!!! :-) rsync will favor using ssh these days, no -e ...
> necessary. ;-)
>
Cool! I thought it was odd that the default was rsh given the state of
data security lately.
OK. I just _read_ the man page and yes, ssh is the default shell with -e
foo the flag for choice. So the -e ssh is just a carryover from old
habits. I have many. Most involve beer. Explicitly listing ssh probably
is not too bad all thing considered :) But my typing load was just
lessened by this new knowledge so I have more time for beer :)
>
> But an rsync on the initial transfer is actually SLOWER than a
> plain
> tarball transfer. Each 1k block is checked and found to be
> missing and
> then transferred, repeat ad nauseum.
>
> Ahhh, but rsync *can* pickup where it left off, whereas tar+ssh
> becomes a pain when there is a network blip after 80GB have transfered
> and only 2GB remain. ;-)
And _THAT_ is when rsync is your friend.
Hmm. I wonder if "curl -C" could be used instead of ssh since it can
pickup a failed transfer at the drop point...
Something to test later.
>
> -Jim P.
>
>
>
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James P. Kinney III
CEO & Director of Engineering
Local Net Solutions,LLC
770-493-8244
http://www.localnetsolutions.com
GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
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