If disk is mounted in folder like /data/data* and formated by slapformat
as /data/data*/slappart* for each partition, create a symlink
instance_root/DATA/data* to allow process of partition to write in
in the mounted disk.

Set tap network information in a dict if they are defined

We also extend 'scipy' because scikit-learn can't be used without it.

Used to access directly to VM.