Local disk rsync

Ryan Malayter malayter at gmail.com
Mon Apr 13 15:14:24 GMT 2009

On Fri, Apr 10, 2009 at 1:58 PM,  <listserv.traffic at sloop.net> wrote:
> I've looked at robocopy, but it doesn't appear to have any
> mechanism to skip equal files and only copy files that have changed,
> even if it copies the whole file instead of a delta. (perhaps
> something could be rigged with the archive bit, though rdiff-backup
> may not reliably handle the dos archive bit - it's something I'd
> have to look at more.)

Only copying changed files is *exactly* what ROBOCOPY is designed for.
This is even the default behavior. It uses
filename+size+modification_time to determine if two files are the
same. ROBOCOPY also has an enromous number of logging options.

Rsync is a great hammer, but every problem isn't a nail. I never use
rsync for anything "local", even between two hosts on the same
(switched) subnet. Rsync has quite a bit of setup overhead; simpler
tools are faster when bandwidth is almost free.


More information about the rsync mailing list