rsync to iSCSI over WAN

[Benjamin R. Haskell]

On Fri, 23 Jul 2010, Benjamin R. Haskell wrote:

> On Fri, 23 Jul 2010, Tom Christensen wrote:
> 
> > I am running rsync in cygwin on windows. I am attempting to backup a 
> > somewhat large data store (750GB) to a remote site. As its windows 
> > and preserving permissions exactly is important, I have an iSCSI 
> > drive mounted on the local system across a somewhat slow WAN link 
> > (IE, it would take about 3 months to copy the datastore over it).  
> > Unfortunately, since this appears as a "local" copy to rsync, it 
> > always copies whole files. Even though it is a "local" copy, I want 
> > to only send diffs, as we have large files that have small changes 
> > daily.  Reading the man page, and everything I can find on the net I 
> > don't see an option to force diffs only/rsync protocol, is this 
> > possible?
> 
> I didn't see a "don't use --whole-file"-type option. [...]

Apparently I didn't look very hard...  searched for 'whole' again in the 
man page...

Just use --no-whole-file.

Though the batch mode is also a handy thing to know about, there's 
overhead from making two passes.

-- 
Best,
Ben