Re: scp sparse dd file

[Cryptographrix]

On the destination server:
dd if=/dev/zero of=<file> bs=1M count=0 seek=120000
mkfs.<filesystem_type> <file>
mkdir -p /mnt/local

mount -t loop <file> /mnt/local/

On the source:

mkdir -p /mnt/local/

mount -t loop <local_raw_file> /mnt/local/

cd /mnt/local

rsync -avr . user@remoteServer:/mnt/local/

on both servers:

sync;sync;sync;sync;

umount /mnt/local

On Mon, Apr 2, 2012 at 5:30 PM, Simon Hintermann <address@hidden> wrote:

Hello all,

I have a tricky one (so do I think)...

My virtual machines are raw-based files, created with a "dd if=/dev/zero of=.. bs=1M count=0 seek=120000", for example.

As I want to have native I/O performances on my servers, I do not use any NAS or SAN, so when I want to migrate my VMs: scp and/or rsync.

Now is there any way to be able to copy a sparse dd file that uses only 10MB out of 120GB without transferring the whole 120GB over to another server (keeping the sparse capability, of course...)?

Thank you for your expertise!

Greetings,

Simon