Linux / HPC

There are multiple places where you can store files. There is your home directory, /home/<username>, and "storage", available at /net/storage/<username>, where <username> is your username.

The quota for home is 2GB for students and 20GB for everyone else. Storage has a quota of 100GB for students and 500GB for everyone else.

The quota for the home directories is so small, because it is backed entirely by fast solid state drives whereas storage is backed by convential rotating rust. Just symlink directories in storage to your home if you need to access them more often.

We install a lot of packages by default, probably the package is already installed. If not and the software is packaged for Debian, its sufficient to write an email to linux@physik.fu-berlin.de with the package's name. You're also free to compile things to your hearts content in your home and the package managers of the usual programming languages have options to install packages to your home  (e.g. pip3 install --user).

Yes! Please find the information in our Wiki.

Usually, the reason is that you are over quota (you are using to much storage). The command  quota -s can tell you if that is the case. The quota for /home is 2GB for students and 20GB for group members.  The solution is to simply delete no longer needed files or move them to  /net/storage/<username>.