migrate qcow2 to drbd/lvm container

[aneubau]

What would be the best way to migrate a qcow2 container for a kvm machine (windows 2003 Server) to a drbd/lvm based container ?
Is there a way to use qemu-img over a network pipe (netcat) ?

Thanks

aneubau

 

[dietmar]

What would be the best way to migrate a qcow2 container for a kvm machine (windows 2003 Server) to a drbd/lvm based container ?

Use qemu-img to conver it to raw format. The 'dd' the raw image to the lvm volume (create on with equal size).

Is there a way to use qemu-img over a network pipe (netcat) ?

I do not really understang your question. But qemu-image need direct access to the image file (random seek necessary).

 

[aneubau]

Thanks, but that is not what I can do, cause I don' have enough free space on the disk and wanted to transfer data on the fly on another server.

Use qemu-img to conver it to raw format. The 'dd' the raw image to the lvm volume (create on with equal size).

I do not really understang your question. But qemu-image need direct access to the image file (random seek necessary).

Something like
"qemu-img convert <image file>.qcow2 -O raw | netcat -l -p 9999"
and
"netcat <server ip> 9999 > /dev/mapper/<lvm volume>"
on the other server.
But you already answered my question. It is not possible cause qemu-img needs direct access to the file.