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From: Steve Wampler on 30 Oct 2009 17:34
On Thu, 29 Oct 2009 10:51:13 +0100, David Brown wrote:
> We can talk about rsync and networks if you like! rsync is very
> network-friendly, as it only copies over the differences between
> directories when doing a synchronisation (assuming you have appropriate
> flags set). For large files, it can even copy only the changed parts of
> the file. And all the network transfers can be compressed. This all
> makes it very bandwidth friendly, and is very useful for doing offsite
> backups.

There are, of course, exceptions to any rule. I ran some tests a while
back and discovered that in our situation it was faster to simply use
rcp than rsync. We were syncing very large files across a fast network
and it took rsync longer to figure out what to copy than to just blindly
copy it all. In fact, for files that were identical at both ends, rcp was
*still* faster.

However, I don't disagree with the above as a general guideline.
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