You got any papers or anything on this? Sounds pretty interesting, I never knew rysnc would be able to do it with a binary.<br>Learn something everyday<br><br><div class="gmail_quote">On Thu, May 26, 2011 at 4:59 PM, Richard Dewhurst <span dir="ltr"><<a href="mailto:dewhurst%2Blug_nottingham@gmail.com">dewhurst+lug_nottingham@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Or take the more sensible option of extracting the zip files on both ends and running rsync on the uncompressed images.<br>
<br>
Rsync is perfectly capable of transferring only the changed portions of a large file, it's just that compressed files tend to change completely when the files inside change, unless created with something like gzip's --rsyncable.<br>
<br>
It also has --compress/--compress-level if you want to compress the transfer itself.<div><div></div><div class="h5"><br>
<br>
<br>
Martin wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
On 26 May 2011 16:21, Jason Irwin <<a href="mailto:jasonirwin73@gmail.com" target="_blank">jasonirwin73@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Is it one huge compressed image or is it rather small bits that contribute?<br>
</blockquote></blockquote>
<br>
If the VMimage is compressed as one block, then rsync will see it as<br>
one file and will transfer it as one file.<br>
<br>
If you can mount the image remotely, and mount your image locally,<br>
then rsync will only transfer the files and directories that are<br>
different between the two. Just to be sure, I'd use the "-c" option<br>
for checksumming but with 11 GBytes, you'll need fast machines for<br>
that to be practical in just 24 hours!<br>
<br>
How fast is your connection?<br>
<br>
Perhaps your only chance is to mount the contents of the images and<br>
rsync the difference of the contents of the images.<br>
<br>
<br>
Or...<br>
<br>
Jump on an airplane with a memory stick?<br>
<br>
Good luck,<br>
Martin<br>
<br>
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</blockquote>
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