how to migrate 40T data and 180M files

Ming Gao gaomingcn at
Tue Aug 11 03:37:14 MDT 2009

It's almost the same? I ever tested on about 7G data, I rsync'ed it to
another directory, and it takes less than 1 minute when I run the same
command line again.

The reason why I use rsync is that the data will change during the time I
run rsync the first time. Then I need to run rsync the second time to make
them the same.

How long would it take if the two copies are the same? I mean just verify if
they are the same.

2009/8/11 Michal Suchanek <hramrach at>

> Finding out what's
> already transferred and transferring the rest takes about the same
> time as doing a full transfer.
> Thanks
> Michal
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