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.
|exa5||High Performance Storage||Lustre|
|ceph||Large Capacity Storage||Ceph|
The following file systems are available for users:
|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.
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: firstname.lastname@example.org
|home||100GB||Size of home directory for each user|
|scratch||20GB||Size of scratched directory for each user|
For additional space, please contact the support team: email@example.com