[linux-lvm] sparse copy i.e. /dev/sda3 -> /dev/mvlvm/mythinpool?

[linux-lvm] sparse copy i.e. /dev/sda3 -> /dev/mvlvm/mythinpool?

[Oliver Rath]

Hi list,

is it possible, to copy a real device like /dev/sda3 to a thinpool
device in a sparse way? I tried several things like dd_rescue -a .. ,
but there was no sparse-effect :-(

Any hints?

Tfh!

Oliver

Re: [linux-lvm] sparse copy i.e. /dev/sda3 -> /dev/mvlvm/mythinpool?

[James Hawtin]

I no longer have it however I wrote a program to resparse files a long 
time ago. what it did was read a block of data, if it was zero it did 
nothing, if it had data it seeked to the beginning of where the data is 
and then wrote it, and when it got to the end it seeked to the end.

James

On 11/08/2012 16:34, Oliver Rath wrote:
> Hi list,
>
> is it possible, to copy a real device like /dev/sda3 to a thinpool
> device in a sparse way? I tried several things like dd_rescue -a .. ,
> but there was no sparse-effect :-(
>
> Any hints?
>
> Tfh!
>
> Oliver
>
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> linux-lvm mailing list
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> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>
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