File transfer

Access to the compute and storage systems (Betzy, Fram, Saga, NIRD) is permitted only trough secure shell (ssh).

One can use scp (secure copy) or sftp (secure file transfer protocol) and rsync to upload or download data. There are graphical frontends for these tools, for instance WinSCP for MS Windows.

Transferring files between Betzy/Fram/Saga and NIRD

Since NIRD is mounted on the login nodes of Betzy, Fram, and Saga, one can use regular cp or mv commands on the cluster login nodes to copy or move files into or out of the NIRD project areas.

For more information, please check out the Betzy, Fram and Saga storage page.

Moving files from Stallo to NIRD

You can use scp or rsync and possibly start several rsync processes in parallel. But it is important to choose the proper NIRD login, either login-tos or login-trd.

If you are about to transfer very many small files, tar the files before transferring them and then transfer them as one archive.


scp: secure copy between hosts on a network

Few typical examples when using scp:

# copy single file to home folder on Fram
# note that folder is ommitted, home folder being default
$ scp my_file.tar.gz <username>

# copy a directory to work area
$ scp -r my_dir/ <username><username>/

# copy a result directory back to my laptop
$ scp -r <username><username>/my_results /home/some/place

sftp: interactive secure file transfer program (Secure FTP)

In this example we copy all logs with names that start with "out" and end with ".log" from the project1 folder to /nird/projects/project1 on NIRD:

$ sftp <username>

sftp> lcd project1
sftp> cd /nird/projects/project1
sftp> put out*.log

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