[rescue] Oracle making just a little harder to keep old machines in use

Stéphane Tsacas stephane.tsacas at gmail.com
Sun May 9 07:32:52 CDT 2010

On Sat, May 8, 2010 at 17:05, Patrick Finnegan <pat at computer-refuge.org>wrote:

> On Saturday 08 May 2010, Rich Kulawiec wrote:
> > On Fri, May 07, 2010 at 12:01:24PM -0400, Joshua Boyd wrote:
> > > What do you need from a zfsdump that zfs send won't do?
> ...
> > And perhaps this is just my lack of zfs savvy speaking, but it's
> > not clear to me yet how to do incremental backups using this method.
> > One of the systems that I run has ~40T of storage mostly consisting
> > of large files that are very infrequently modified (in some cases:
> > never) and I'd like to leverage that into making backups run as
> > quickly as possible and occupy as little space as possible.
> Why won't (GNU) tar work?  It does everything that you say you are
> wanting.
> Pat

tar main drawback is that it may modify the directories/files access time,
while *dump will open the disk raw device, and read blocks from there.


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