File Service for UNIX/Linux

Storage for UNIX/Linux file service is automatically assigned to each GWDG account. This storage can be accessed via dialog or samba server or using the parallel computers.

Almost the entire UNIX/Linux hosts within the GWDG use the global file systems StorNext. The directories are in general, shared simultaneously on multiple systems accessible by users via the NFS protocol.

Individual user directories can be exported to a UNIX/Linux system within an institute using NFS if the performance requirements exceed the access using a the samba server. You can request the NFS export by sending an E-Mail to

In a UNIX/Linux dialog session the file service is structured by the following three environment variables:

Variable Access Description Default Size
$HOMEHome directory for constant data. 25 GB
$THOMEHome directory for temporary data,
which is generally deleted by GWDG after a week.
6 GB
$AHOMEHome directory on the archive server. unlimited

After a successful login the user will be placed into his or her home directory $HOME. There UNIX commands can be invoked. If the assigned storage (by default 25GB / 6GB) is not sufficient an informal request for expanding the quota can be sent to

$THOME is to be used for saving files temporarily. Please note that in $THOME aged one week or more will be erased automatically without notification. In order to use $THOME via the samba server the following commands must be executed on a dialog server. (This has to be done only once.)

cd $HOME
ln -s $THOME ./thome

If files need to be archived in order to keep free space at your $HOME director they can easily be moved to $AHOME using UNIX commands. You can find more Information in the article for Data Archiving.

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