Data Access on Windows

This section is only relevant for DC04 and RTTC software. With DC06 software you can access data files directly from Gaudi, as on Linux.

With DC04 and RTTC software, direct access to castor using rfio does not work on Windows due to a bug in the ROOT rfio client, so you will need to copy any data you need to the local disk of your machine.

NOTE For Terminal Server users : Before copying any data yourself, check the local directory C:\Users\LHCbData to see if your data file has already been copied over.

To copy a file from castor, by far the most convenient method is to use the rfcp command as provided by the shift software package. If you have this installed, the command is

> cd C:\<somewhere>
> rfcp /castor/cern.ch/lhcb/DC04/<filename> .

If you don't have rfcp available then it is also possible (although much less convenient) to do it using the PuTTy package, using a procedure such as :-

On lxplus :
- cd /tmp
- rfcp /castor/cern.ch/lhcb/DC04/<filename> .
Copy to the Terminal server
- From a DOS shell run
  - cd C:\<somewhere>
  - C:\Program Files\PuTTy\pscp.exe <username>@<lxplushostname>.cern.ch:/tmp/<filename> .
    - Where <lxplushostname> is the particular host you used in the last step and <username> is your afs username.

Finally, don't forget to to update your options files to use the local version of the data files.