[ale] does DUMP backup only the 'used' HD fraction, OR, the 'entire' HD, blank space and all ?

[Courtney Thomas]

On 02/29/12 23:05, Jim Kinney wrote:
> dump ignores blank space. It's only concerned  with files.
> Dump will not get the boot sector data.
>
> The no label may just be a really old drive or a jumper is set wrong 
> to turn off LBA.
>
> Note: it's not required for  full dump to reset the dump flags. You 
> can just ignore the flags with dump -level0
>
> 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.
>
> I use rsync for this now. Dump is _so_ 1970's :-)
>
> On Wed, Feb 29, 2012 at 9:50 PM, Courtney Thomas 
> <courtneycthomas at bellsouth.net <mailto:courtneycthomas at bellsouth.net>> 
> wrote:
>
>     Greetings Again !
>
>     I'm trying to archive a HD to a smaller drive using DUMP, and I'm
>     OK if it
>     only archives the written portion of the source drive, but if it
>     requires that
>     the 'blank' space also be included, then I guess I'll need to buy a
>     larger drive.
>
>     I'm aware of the chflags nodump capability which'd apparently permit
>     omitting part of the source of this intended complete backup, i.e.
>     dump
>     -0.....
>
>     What I seek is a full backup so that I can simply remove a failed
>     drive,
>     plug
>     this one in, and run, essentially as I'm now doing with the source
>     drive. I've
>     got months of effort in putting together this drive and I'll shoot
>     myself if
>     I don't get it backed up before the inevitable occurs  :-)
>
>     --------------------------------------------------------------------------------------------------
>
>     Also, the archive drive is a new, but older Seagate (never used),
>     drive
>     [ATA]
>     which I've tested, block by block, [dd] without error, which
>     partitions and
>     formats without difficulty, but for unknown reasons, will not permit
>     labeling.
>     [R/W DMA error.] Please instruct how to handle this.
>
>     --------------------------------------------------------------------------------------------------
>
>     Finally, does master/slave jumper matter here ?
>
>     --------------------------------------------------------------------------------------------------
>
>     All guidance gratefully requested,
>
>     Courtney
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>
>
>
> -- 
> -- 
> James P. Kinney III
>
> 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.
> - ////2011 Noam Chomsky
>
> http://heretothereideas.blogspot.com/
> ////
>
>
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Jim,

As always, thanks for your help.

What advantages does rsync offer, in terms of what I'm trying to do and 
what specific command do you recommend in that regard ?

Thank you for your time,

Courtney
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