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Mountpoints

Mountpoints

HPC Vega uses and integrates technologies for data storage with different characteristics, which offer a variety of different file systems. These provide SLING and EuroHPC users with storage capacity and predefined directories.

Name Description Type
exa5 High Performance Storage Lustre
ceph Large Capacity Storage Ceph

File systems

The following file systems are available for users:

Area Path Description
tmp /tmp Local temporary directory on compute nodes for all users
home /ceph/hpc/home/$USER Home directory for users on a shared file system mounted on compute and login nodes
scratch /exa5/scratch/user/$USER Scratch directory on the High Performance Storage – Lustre – on request mounted on compute and login nodes
scratch /ceph/hpc/scratch/user/$USER Scratch directory on the Large Capacity Storage – Ceph – on request mounted on compute and login nodes
Local scratch /scratch/slurm/jobid Temporary node-local directory for jobs (created automatically by Slurm prolog script and deleted after the job is finished)

Home Directory is user's home directory with a default quota of 100 GB . All home directories are on a shared file system and provide internal snapshots (backup) which are stored for 30 days.

Scratch Directories:

On the High Performance Storage – Lustre /exa5/scratch/user/

On the Large Capacity Storage – Ceph /ceph/hpc/scratch/user/

These directories are created upon a user request and are recommend for storing large amounts of non-persistent data. Files in these file systems are removed after one month, so please copy any data you want to keep to your home directory. Quotas are set in the scratch directory. Detailed information for quotas is available at this link.

Users should check their disk space quota by using the following commands:

For the usage on Lustre file system:

lfs quota -h -u $USER /exa5/scratch/user/$USER/

For the usage on Ceph file system:

getfattr -n ceph.quota.max_bytes /ceph/hpc/home/$USER

If you need permanent storage of large amounts of data, please contact the support team: support@sling.si

Quotas

Capacity Description
home 100GB Size of home directory for each user
scratch 20GB Size of scratched directory for each user

Increasing Quotas

For additional space, please contact the support team: support@sling.si