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archiving:preparation

Preparing to archive

We suggest to compress and annotate data prior to archiving with the TSM archive:

  • compressing saves transfer time
  • annotation eases the interpretation of retrieved data (if an archive needs to be pulled back).

Compressing Directories

Smaller directory can be compressed in the standard way:

# assuming gzip compression
$ tar -czf <archivename>.tar.gz <directoryname>

For directory with many huge files, this will take some patience - yours and others on the login-node where you are working on. An alternative is to reserve a full node and use parallel compression (again assuming gzip, just using the parallel version of it):

$ module load tools/pigz
# reservation on Mogon I
$ srun -A <your account> -p nodeshort -t <appropriate time> -N 1 -c64 --pty bash -i 
<some node>:$ tar -I pigz -cf <archivename>.tar.gz <directoryname>
archiving/preparation.txt · Last modified: 2018/10/30 16:34 by meesters