10 Available file system

User area (home directories): /home

The file system for user home directories on stallo. It is a global file system and mounted on all the compute node. Even if it is mounted you should not use it for running jobs. Files are backed up weekly.

Work area (temporary data):

/global/work/ : This is the scratch area of stallo. You should run all jobs in this area.
                This area is mounted on all nodes on stallo (including the login nodes).
                Users can stripe files them self as this file system is a Lustre file system.
                Files older than 14 days. are subject for deletion without future notice.
                There is no backup of files in this area.


/local/work/  : on each compute node there are a small disk. On this disk a local scratch area of 69 GB exists.
               if you have special needs and not to big amount of data you could use this area.

What area to use for what data

/home should be used for storing tools, like application sources, scripts, or any relevant data which must have a backup.

/work/ should be used for running jobs, as a main storage during data processing. All data after processing must be moved out of the machine or deleted after use.

Policies for deletion of temporary data

/global/work/ has no backup and, file older than 14 days are subject for deletion without any notice. /local/work/ has no backup and, files belonging to users other than the one that runs a job on the node will be deleted.

Since this deletion process (as well as the high disk usage percent) will take away disk-performance from the running jobs - the best solution is of course for you to remember to clean up after each job.