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

[Jim Kinney]

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.

This link http://www.thegeekstuff.com/2010/09/rsync-command-examples/

has some good examples of what can be done with rsync. It's a great tool to
know how to use.

On Thu, Mar 1, 2012 at 10:17 AM, Courtney Thomas <
courtneycthomas at bellsouth.net> wrote:

>  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> 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/
> *
>
>
> _______________________________________________
> Ale mailing listAle at ale.orghttp://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists athttp://mail.ale.org/mailman/listinfo
>
>  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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> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
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> http://mail.ale.org/mailman/listinfo
>
>


-- 
-- 
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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