On Fri, Jul 11, 2014 at 10:24 PM, ToddAndMargo <[log in to unmask]> wrote:
>
> Hi Pat,
>
> --modify-window=1
>       3 hr - 9 sec
>
> --modify-window=10
>       3 hr - 8 sec
>
> Rat!  I really though this sounded right

Oh, well...

> Any way to turn of the check sum testing?

Well, there is the "--whole-file" option. But -- and this was news to
me -- the man page says it is already the default for local copies:

 -W, --whole-file
              With this option rsync’s delta-transfer algorithm  is  not  used
              and  the  whole file is sent as-is instead.  The transfer may be
              faster if this option is used when  the  bandwidth  between  the
              source  and destination machines is higher than the bandwidth to
              disk  (especially  when  the  "disk"  is  actually  a  networked
              filesystem).   This is the default when both the source and des‐
              tination  are  specified  as  local  paths,  but  only   if   no
              batch-writing option is in effect.

Are you doing incremental copies here, or are you generally copying an
entire tree "fresh"?

Have you tested the speed of a simple "cp -a" or tar/untar?

 - Pat