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Re: Announcing Fedora Activity Day - Fedora Development Cycle 2009

Jesse Keating wrote:
> On Mon, 2009-06-01 at 20:56 -0500, Bruno Wolff III wrote:
> > Do you hard link the new release files to the ones identical in rawhide
> > so that rsync doesn't have to transfer them to places mirroring rawhide?
> Yes and no.  We do use hardlinks, however the mechanism that gets it
> from PHX to Raleigh is Netapp snapmirror, which works at the block
> level.  I don't know enough about snapmirror to know if it is helped by
> hardlinks or not.  The individual files aren't the real problem, it's
> the isos, particularly the live isos.

A program similar to Jigdo could speed this up. Transfer only the RPM packages 
(taking advantage of hard links) and information on what packages are in each 
ISO image, and then recreate the ISO images at the destination. That way each 
package would only be transferred once, regardless of how many ISO images it 
occurs in.

Björn Persson

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