File Systems
Quotas
See the chart at the bottom of the page for file system and storage quotas
Home Directories
- All production OCF (CZ and RZ), iSNSI and SCF LC systems share home directories that reside on global file system /g, NFS mounted from several dedicated servers.
- See EZFILES and Home Directories for details.
Parallel File Systems
- Parallel file systems are large, shared, file systems used for parallel I/O.
- All machines except CORAL machines use Lustre open source parallel file systems.
- CORAL machines (Ray, RZManta, Shark; Lassen, RZAnsel, Sierra) use GPFS from IBM.
- For additional information, see EZFILES and the LC Resources Tutorials Parallel File Systems Information.
Temporary File Systems
- Various temporary file systems (global and local) are for system use, temporary storage of I/O local to each machine, or large temporary storage for I/O shared among many machines.
- See EZFILES and Temporary File Systems for details.
/usr/workspace File Systems
- 2 TB of NFS mounted file space is provided for each user and group.
- These file systems are similar to home directories, but are not backed up. For details, see EZFILES and /usr/workspace File Systems.
/usr/gapps and /usr/gdata File Systems
- LC provides shared, collaborative, NFS mounted file space for user developed and supported applications and data on LC systems.
- See /usr/gapps, /usr/gdata File Systems and /usr/gapps File System for details.
Archival Storage Hardware
- High Performance Archival Storage System (HPSS) is available on all LC production systems.
- For more information, see EZSTORAGE, Archival HPSS Storage, and the HPSS User Manual.
File System Status
- The file system status displays real-time status information on LC file systems. It also shows which file systems are mounted by each cluster and file system bandwidth between clusters.
- CZ: CZ File System Status or mylc.llnl.gov
- RZ: RZ File System Status or rzmylc.llnl.gov
- SCF: SCF File System Status or mylc.llnl.gov
- iSNSI: File system status - TBA
Quotas for File Systems and Storage
| LC Storage Type | Tier 1 | Tier 2 | Tier 3 | Snap- | Back up to tape? |
|---|---|---|---|---|---|
| Parallel File Systems /p/lustre* (Lustre) /p/gpfs* (GPFS - pending deployment) /p/vast* (Vast - pending deployment) | 20TB/1M | 75TB/10M Contact LC Hotline to request increase | Contact LC Hotline to initiate conversation with Livermore Computing and programmatic stakeholders | No | No |
| NAS/NFS Project /usr/workspace, /usr/WS* /usr/gapps† /usr/gdata† |
2TB/10M 10GB† 10GB† | Contact LC Hotline to initiate conversation with Livermore Computing and programmatic stakeholders | Yes Yes Yes | No Yes Yes | |
| Home Directory /g/g* | 24GB | Yes | Yes | ||
| Archive /users/u* (HPSS) | 300TB | No | No | ||
†these quotas are per directory, not per user as in all other cases