Storage¶
The cluster has 60 TB of shared storage for software, user homes, and research data. The storage node is mounted on every node over NFS.
Home directory — /storage/home/<username>¶
Your home directory is snapshotted daily and the snapshots are backed up off-site to LRZ in Garching. If you accidentally delete a file that was at least one day old, we can almost always recover it. Snapshots older than 30 days are removed.
nobackup — /storage/nobackup/<username>¶
For large datasets — training data, model checkpoints, intermediate outputs —
use the nobackup partition. It is also reachable as ~/nobackup in your
home directory.
nobackup is still snapshotted daily (so accidental deletions are
recoverable), but it is not included in the off-site backup. This keeps
the backup volume manageable while preserving day-to-day deletion safety.
scratch — node-local fast storage¶
Each node exposes a small, fast, node-local scratch directory, symlinked
into your home as ~/scratch. Properties:
- Not shared across nodes.
- Not backed up.
- May be cleaned up by administrators when nodes run low on space.
Use it for temporary working data only.
Warning
Do not store anything you cannot afford to lose in scratch. Move results
back to your home directory or nobackup before your job ends.