Backup and data transfer

• Note, that there is no general backup service for user data.
  So make sure that your data are stored on a secure medium after data collection.


• Users are encouraged to bring their own disks that can easily be connected
  to the linux or the windows media station.


• Please, remove as much of your data from the file servers as you can.


• NEW easy simultaneous backup using the Linux media station




How to connect the firewire disk

• use the XP media station
• connect your disk to the firewire cable of the media station
• (a USB connection is also possible)
• the new device should be recognised by the system (see MyComputer)
• start the Beamline Explorer
• login with your e-account
  (this maps your data path on the fileserver where your collected data are stored to the pc)
• in the Beamline Explorer, go to your data directory
• copy the files from the file server to your disk
• after all files are copied:
• close/leave all applications/windows that access the external device, i.e. your disk
• remove your disk



• in case, the firewire disk prompts the user to log in as admin (e.g., in order to install some software),
  ignore this and proceed
• in case, this does not help -- use the USB port of the media station instead (provided a USB port
  is also available on the firewire disk)
• An emergency fire wire disk is available at the beam line (ask your local contact).


• possible problems



• DVD writer available but not really recommended.


• From the SLS network data can be transfered via ftp to any other ftp server.
  For Linux computers the description is found here.
  Be sure to use binary mode and not ascii!


• Possible checks: if you want to test whether your data have been transfered uncorruptedly, you can calculate the checksums (e.g., using md5sum) and compare the images before and after transfer.

Comfortable data backup via rsync

1. Get yourself a personal AFS account @PSI.
   Instructions can be found here.
   (For project budget codes (group accounts), talk to your beamline scientist or get one via the DUO .)


2. Use your AFS account to login (ssh) to a central PSI system, e.g., llc.psi.ch, slslc.psi.ch or slslc03.psi.ch.


3. Use 'blmount' to mount your e-account data directory, e.g., blmount x10sa e12345.
   (For e-accounts, talk to your beamline scientist.)


4. Copy your data to a remote site.
   You can use one of the following methods, assuming you have an ssh or ftp server at your site.
   
   
   • rsync -e ssh -av slsbl/x10sa/e12345/data john@mysystem.abc.edu:/anydir/
   • scp -rv slsbl/x10sa/e12345/data john@mysystem.abc.edu:/anydir/
   • or use any ftp client (ftp, lftp, gftp)