Storage spaces
Overview of storage spaces
- PROJECTDIR — Common space for all members of a project. Contains $SHAREDIR, a subspace shared among users of the same project.
- $HOMEDIR — Personal working space.
- $SAVEDIR — Per-user backup space.
- $SCRATCHDIR — Temporary compute space used only during job execution; data is automatically deleted after 30 days or sooner if space management requires.
Summary table
| Storage space | Quota / note | Shared space | Submitting jobs from this space | Backed up | Temporary |
|---|---|---|---|---|---|
| PROJECTDIR | 1 TB (expandable) | No | No | No | No |
| $HOMEDIR | No (per-user quota) | No | Yes (slow — not recommended) | No | No |
| $SHAREDIR | Included in PROJECTDIR | Yes (among project users) | Yes (slow — not recommended) | No | No |
| $SAVEDIR | 10 GB | No | No | Yes | No |
| $SCRATCHDIR | No (ephemeral space) | No | Yes (fast — recommended) | No | Yes |
Notes
- Prefer $SCRATCHDIR for intensive, temporary computations.
- Avoid launching heavy jobs from $HOMEDIR or $SHAREDIR (slow I/O).
- Check your files in $SCRATCHDIR regularly to avoid data loss.