[Nottingham] Just how smart is rsync?

[Martin]

On 26 May 2011 16:21, Jason Irwin <jasonirwin73 at gmail.com> wrote:
>>Is it one huge compressed image or is it rather small bits that contribute?

If the VMimage is compressed as one block, then rsync will see it as
one file and will transfer it as one file.

If you can mount the image remotely, and mount your image locally,
then rsync will only transfer the files and directories that are
different between the two. Just to be sure, I'd use the "-c" option
for checksumming but with 11 GBytes, you'll need fast machines for
that to be practical in just 24 hours!

How fast is your connection?

Perhaps your only chance is to mount the contents of the images and
rsync the difference of the contents of the images.


Or...

Jump on an airplane with a memory stick?

Good luck,
Martin