In comp.os.linux.networking Nikhil <mnikhil@gmail.com>:
> Michael Heiming wrote:
>> In comp.os.linux.networking Unruh <unruh-spam@physics.ubc.ca>:
>>> Dave <foo@coo.com> writes:

>>>> Goran Ivanic wrote:
>>>>> Assuem I want to transfer large amounts of stuff from one server to another (through Internet).

>>>>> Which method should I prefer:

>>>>> ftp or rsync ?
>> [..]

>>>> My guess is ftp will be faster. It just moves the files, and does not
>>>> care whether they exist on the other end or not.

>>> On large files that is a trivial overhead. rsync can also checks if the
>>> files transfered are the same or not. ftp does not
>>> From man rsync
>>> Note that rsync always verifies that each transferred file was
>>> correctly reconstructed on the receiving side by checking its
>>> whole-file checksum,...

>> I'd also take a look into 'unison', it is faster the rsync in
>> certain situation and its GUI might make things easier for
>> beginners, though you really want to use it from the shell to
>> take most advantages.

> hey Michael,

> what else unison can offer in particular what rsync cannot at this point
> of time? What I understand is rsync is a one way transferr system
> whereas unison can do multi-way sync of file transferrs across like
> wansync/intellisync ... is that correct?

Indeed unison can work in both directions at the same time,
though it's (iirc) also based on the rsync protocol it builds
some database on the first run and will use this on subsequent
runs. Then it outperforms rsync in order of magnitudes with very
large filesystems you want to sync.

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo zvpunry@urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
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