[kwlug-disc] Backup and Recovery in the 21st Century

Khalid Baheyeldin kb at 2bits.com
Tue Jan 12 09:29:56 EST 2010


On Mon, Jan 11, 2010 at 11:52 PM, Chris Irwin <chris at chrisirwin.ca> wrote:

> On Fri, 2010-01-08 at 18:50 -0500, Khalid Baheyeldin wrote:
> > Dump is a very old utility, yet very useful.
>
> It seems dump is not available for ext4 at present anyway, so I'm stuck
> with something else. I'm still somewhat curious what the actual benefit
> is. I saw some vague references to speed improvements (meh, it runs at
> night) and a comparison done on BSD systems in 1991. Other than that,
> there doesn't seem to be much info on why it is a better choice, just
> that it works differently.
>

The fact that it does incremental backup natively, understanding the
difference between a full and an incremental. It also does many levels
of incremental if you need that (Tower of Hanoi scheme).

The fact that it works on the file system level also has advantages. You
can restore a partition EXACTLY to what it was before. This means
timestamps, ownerships, access times, ...etc.


>
> --
> Chris Irwin
> e:  chris at chrisirwin.ca
> w: http://chrisirwin.ca
>
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>


-- 
Khalid M. Baheyeldin
2bits.com, Inc.
http://2bits.com
Drupal optimization, development, customization and consulting.
Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
Simplicity is the ultimate sophistication. --   Leonardo da Vinci
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