[et-mgmt-tools] Re: [PATCH] Adding the option "--nodiskcopy" for virt-clone
Daniel P. Berrange
berrange at redhat.com
Wed May 30 03:23:37 UTC 2007
On Mon, May 28, 2007 at 08:24:50PM +0900, Kazuki Mizushima wrote:
> Hi,
>
> I make a patch added "--nodiskcopy" option for virt-clone.
>
> When this option is specified, only changing and defining
> a XML is done, and read/write copying is not done.
>
> When a user wants to use a ready-made snapshot product and so on
> not a normal copy(read/write) at the time of device copying, I
> think that this option is effective. It may be faster than
> normal copying.
>
> A user uses in the following.
> 1)Take snapshot
> A user takes snapshot which becomes R/W volumes
> (e.g. split-mirror way). It depends on a product.
>
> 2)Take clone having --nodiskcopy option
> #virt-clone -o original -n clone -f /dev/snapshot_sysvol
> -f /dev/snapshot_data1
> -f /dev/snapshot_data2
> --nodiskcopy
Looks good to me, though I think I'd prefer --preserve-data instead of
--nodiskcopy as a name.
Dan.
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