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Re: [Xen-users] Convert CentOS system to Xen image?


  • To: "Xen List" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Javier Guerra" <javier@xxxxxxxxxxx>
  • Date: Wed, 2 Apr 2008 10:14:37 -0500
  • Delivery-date: Wed, 02 Apr 2008 08:15:12 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

On Wed, Apr 2, 2008 at 9:52 AM, Igor Chubin <igor@xxxxxxx> wrote:
>  If I understand you right,
>  you say that
>
>
>  hostA# dump / | ssh hostB restore
>
>  is more effective than:
>
>  hostA# rsync -a / hostB:/

i like to use rsync to replicate running servers.  of course, for
one-shot copy it's no faster than other dump-transfer-restore schemas;
but it's quite easy to use to quickly converge almost to a 'snapshot'
capability:

1: do a full rsync, might take tooo long, lots of stuff wouldn't be
really consistent
2: repeat rsync, should be far faster, copying only the differences.
3: keep repeating until the whole copy is comfortably short. usually
the third iteration is less than a couple minutes
4: quick: shut down services, one last rsync, start services.
5: done!


-- 
Javier

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