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Re: [Xen-users] problem on cloing guest (SOLVED)
| To: | "Antoine Benkemoun" <antoine.benkemoun@xxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] problem on cloing guest (SOLVED) |
| From: | "Grant McWilliams" <grantmasterflash@xxxxxxxxx> |
| Date: | Tue, 16 Sep 2008 10:14:48 -0700 |
| Cc: | Stephen Liu <satimis@xxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 16 Sep 2008 10:15:25 -0700 |
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On Mon, Sep 15, 2008 at 11:43 PM, Antoine Benkemoun <antoine.benkemoun@xxxxxx> wrote:
I think it depends on how you want it to handle sparse files. DD will make a copy of everything even if half the file is zeros. CP can copy sparse files but you need to tell it when to do that (sparse=). Also a note to the original poster, you may want to mess with bs= to find a better value. I generally use dd_rescue or ddrescue to clone images as it's about twice as fast as dd but if you mess with some of the parameters of dd (namely bs=) you can get dd to run almost as fast as the other two. If you're creating 100 images it's probably worth spending a couple minutes running some tests. Optimized dd is probably a better choice than dd_rescue as it's more predictable. Grant _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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