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Kommentar: Added information on transfering data between Emmy and the GWDG SCC.

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Hinweis

For internal data transfer, please always use the host name alone, omitting the domain suffix ".hlrn.de". You can use the generic names blogin, glogin or specific names like blogin5, glogin2, etc.. This way NHR internal links are used which are faster than external routes. The latter are used when specifying fully qualified host names (blogin.hlrn.de or glogin.hlrn.de) which is not recommended here.

Data Transfer Between Emmy (Göttingen) And The GWDG SCC

If you have previously been working on the SCC in Göttingen at the GWDG, you can follow these steps if you need to transfer data to/from the Emmy system:

  1. On an Emmy frontend node (glogin.hlrn.de or glogin[1-9].hlrn.de), generate a new SSH key (also documented at the SCC).
  2. Add the SSH key at the GWDG Website -> My Account -> Security.
  3. From an Emmy frontend node (glogin9.hlrn.de has access to both Emmy and Grete scratches, while glogin.hlrn.de and glogin[1-8].hlrn.de only have access to the Emmy scratch; but all have access to $HOME ), transfer the files using rsync (see SCC documentation and rsync man page) to/from the SCC transfer node transfer-scc.gwdg.de. Some examples are given below
    • Copy a single file FOO  from SCC $HOME into your current directory on Emmy

      Codeblock
      languagebash
      rsync GWDGUSERNAME@transfer-scc.gwdg.de:/usr/users/GWDGUSERNAME/FOO .


    • Copy a single file FOO in your current directory on Emmy to $HOME  on the SCC

      Codeblock
      languagebash
      rsync FOO GWDGUSERNAME@transfer-scc.gwdg.de:/usr/users/GWDGUSERNAME/


    • Copy a directory in your SCC /scratch  to your current directory on Emmy
      Codeblock
      languagebash
      rsync -r GWDGUSERNAME@transfer-scc.gwdg.de:/scratch/projects/workshops/forest/synthetic_trees .
    • Copy a directory in your current directory on Emmy to /scratch  on the SCC
      Codeblock
      languagebash
      rsync -r synthetic_trees GWDGUSERNAME@transfer-scc.gwdg.de:/scratch/projects/workshops/forest/