http://www.cis.upenn.edu/~bcpierce/unison/download.html

The /XO option (exclude older source files) should be added so that older files on the source do not overwrite the destination. Then simply reiterate the same command, swapping the source and destination.

@ECHO OFF
SET prefix=robocopy_backup
REM This is the file that we're going to backup from our local drive
SET source_dir=O:\
REM This is the location where the files will be copied to
REM on the external drive.
SET dest_dir=E:\DropBoxBackup2
REM Set the log file name based on the current date.  This
REM will record the results from the robocopy command.
REM The typical format for the date command is:
REM Mon 11/09/2000
REM So, we are parsing the date by moving 4 characters back and
REM copy 4 characters to get the 4-digit year, then we get the
REM 2-digit month by moving 10 characters back and copying 2
REM characters.  Finally, we get the day by moving 7 characters
REM back and copying 2 characters.
SET log_fname=%prefix%%date:~-4,4%%date:~-10,2%%date:~-7,2%.log
REM See the robocopy documentation for what each command does.
REM /COPY:DAT :: COPY file data, attributes, and timestamps
REM /COPYALL :: COPY ALL file info
REM /B :: copy files in Backup mode.
REM /MIR :: MIRror a directory tree
REM /L :: Just list the info, don't actually do it
SET what_to_copy=/E /COPY:DAT
REM Exclude some files and directories that include transient data
REM that doesn't need to be copied.
SET exclude_dirs=/XD "Temporary Internet Files" "Cache" "Recent" "Cookies" "iPod Photo Cache" "MachineKeys"
SET exclude_files=/XF "*.bak" "*.tmp" "index.dat" "usrclass.dat*" "ntuser.dat*" "*.lock" "*.swp"
REM Refer to the robocopy documentation for more details.
REM /R:n :: number of Retries
REM /W:n :: Wait time between retries
REM /LOG :: Output log file
REM /NFL :: No file logging
REM /NDL :: No dir logging
SET options=/R:0 /W:0 /LOG+:%log_fname% /NFL /NDL
REM Execute the command based on all of our parameters
ROBOCOPY %source_dir% %dest_dir% %what_to_copy% %options%
:END

Yes you can do both ways. You need to write appropriate batch file.

HTH

is the sync two way ?meaning i have server a and server b in a load balanced environment so i wanna to sync file btw this 2 server..from A to B and also from B to A..Thanks.

I have a RHEL server (running IBM Lotus Domino for email server) and WindowsServer 2003 Std (backup storage server).

Can you give a help about :

- step-by-step tutorial about how to backup/restore from Linux svr to Windows svr?

- step-by-step tutorial about how to keep data sync’d between Linux svr to Windows svr?

Pls send me a copy to my email if you can!

Thanks again!

I am sorry but i am not getting your question…
Can you explain it in details?

how to post data from one server to another, using asymmetric data transfer.

Thanks in advance….