rsync can keep a remote copy of a system in sync with the original by copying over only the changes within each file. In particular, rsync works well over networked connections and uses ssh encrypted tunnels (by default now) so the data transfer is protected from snooping.<br>
<br>This link <a href="http://www.thegeekstuff.com/2010/09/rsync-command-examples/">http://www.thegeekstuff.com/2010/09/rsync-command-examples/</a><br><br>has some good examples of what can be done with rsync. It's a great tool to know how to use.<br>
<br><div class="gmail_quote">On Thu, Mar 1, 2012 at 10:17 AM, Courtney Thomas <span dir="ltr"><<a href="mailto:courtneycthomas@bellsouth.net">courtneycthomas@bellsouth.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><div><div class="h5">
On 02/29/12 23:05, Jim Kinney wrote:
<blockquote type="cite">dump ignores blank space. It's only concerned with
files.<br>
Dump will not get the boot sector data.<br>
<br>
The no label may just be a really old drive or a jumper is set
wrong to turn off LBA. <br>
<br>
Note: it's not required for full dump to reset the dump flags.
You can just ignore the flags with dump -level0<br>
<br>
Master/slave: for performance needs, it;s best to have the source
and target drive on different ATA cables. If they share a cable as
master/slave, it will run at slightly less than 50% the dump speed
as if they were on different cables. It make no different which is
master as long as they are different if on the same cable.<br>
<br>
I use rsync for this now. Dump is _so_ 1970's :-)<br>
<br>
<div class="gmail_quote">On Wed, Feb 29, 2012 at 9:50 PM, Courtney
Thomas <span dir="ltr"><<a href="mailto:courtneycthomas@bellsouth.net" target="_blank">courtneycthomas@bellsouth.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Greetings
Again !<br>
<br>
I'm trying to archive a HD to a smaller drive using DUMP, and
I'm OK if it<br>
only archives the written portion of the source drive, but if
it<br>
requires that<br>
the 'blank' space also be included, then I guess I'll need to
buy a<br>
larger drive.<br>
<br>
I'm aware of the chflags nodump capability which'd apparently
permit<br>
omitting part of the source of this intended complete backup,
i.e. dump<br>
-0.....<br>
<br>
What I seek is a full backup so that I can simply remove a
failed drive,<br>
plug<br>
this one in, and run, essentially as I'm now doing with the
source<br>
drive. I've<br>
got months of effort in putting together this drive and I'll
shoot myself if<br>
I don't get it backed up before the inevitable occurs :-)<br>
<br>
--------------------------------------------------------------------------------------------------<br>
<br>
Also, the archive drive is a new, but older Seagate (never
used), drive<br>
[ATA]<br>
which I've tested, block by block, [dd] without error, which
partitions and<br>
formats without difficulty, but for unknown reasons, will not
permit<br>
labeling.<br>
[R/W DMA error.] Please instruct how to handle this.<br>
<br>
--------------------------------------------------------------------------------------------------<br>
<br>
Finally, does master/slave jumper matter here ?<br>
<br>
--------------------------------------------------------------------------------------------------<br>
<br>
All guidance gratefully requested,<br>
<br>
Courtney<br>
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</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
-- <br>
James P. Kinney III<br>
<br>
As long as the general population is passive, apathetic, diverted
to consumerism or hatred of the vulnerable, then the powerful can
do as they please, and those who survive will be left to
contemplate the outcome.<br>
- <i><i><i><i>2011 Noam Chomsky<br>
<br>
<a href="http://heretothereideas.blogspot.com/" target="_blank">http://heretothereideas.blogspot.com/</a><br>
</i></i></i></i><br>
<br>
<fieldset></fieldset>
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</blockquote></div></div>
Jim,<br>
<br>
As always, thanks for your help.<br>
<br>
What advantages does rsync offer, in terms of what I'm trying to do
and what specific command do you recommend in that regard ?<br>
<br>
Thank you for your time,<br>
<br>
Courtney<br>
</div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>-- <br>James P. Kinney III<br><br>As long as the general population is passive, apathetic, diverted to
consumerism or hatred of the vulnerable, then the powerful can do as
they please, and those who survive will be left to contemplate the
outcome.<br>- <i><i><i><i>2011 Noam Chomsky<br><br><a href="http://heretothereideas.blogspot.com/" target="_blank">http://heretothereideas.blogspot.com/</a><br></i></i></i></i><br>