HOME
Every user gets a HOME directory.
Its path is always stored in the environmental variable HOME and most shells will expand ~ into it.
The directory will be HOME_BASE/ACADEMIC_CLOUD_USERNAME/USER for members of projects in the HPC Project Portal and HOME_BASE/USER otherwise (e.g. legacy NHR/HLRN accounts), where HOME_BASE is one of the base directories for home directories (there is more than one and they may change in the future).
The HOME directory is for a user’s
- configuration files
- source code
- self-built software
The HOME storage systems have the following characteristics:
- Optimized for a high number of files rather than capacity
- Optimized for robustness rather than performance
- Has limited disk space per user
- Backed up (some also have snapshots found at
HOME_BASE/.snapshots) - Has a quota
The HOME filesystems have slow-medium to medium performance. The HOME directories for each kind of user are given in the table below.
| Kind of User | Media | Capacity | Filesystem |
|---|---|---|---|
| NHR | SSD | 1.2 PiB (shared) | VAST exported via NFS |
| SCC (HPC Project Portal users) | SSD | 1.2 PiB (shared) | VAST exported via NFS |
| SCC (legacy) | HDD | 10.5 PiB | Stornext exported directlyy and via NFS |
| KISSKI | SSD | 1.2 PiB (shared) | VAST exported via NFS |
| REACT | SSD | 1.2 PiB (shared) | VAST exported via NFS |
Ones marked with “(shared)” in their capacity share space with other data stores. For example, NHR HOME and Project data stores are on the storage system.