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| Warning |
|---|
Due to the unavailability of NFS-based filesystems at this stage, HOME is temporarily setup on Lustre and PERM is not available yet. |
The filesystems available are HOME, PERM, HPCPERM and SCRATCH, and are completely isolated from those in other ECMWF platforms in Reading such as ECGATE or the Cray HPCF.
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File System | Suitable for ... | Technology | Features | Quota |
|---|---|---|---|---|
| HOME | permanent files, e. g. .profile, utilities, sources, libraries, etc. | NFS | It is backed up. Limited I/O performance | 20GB |
| PERM | permanent files without the need for automated backups, smaller input files for serial or small processing, std output, etc. | NFS | It is backed up. Limited I/O performance | 20GB1 TB |
| HPCPERM | permanent files without the need for automated backups, bigger input files for parallel model runs, climate files, etc. | NFS | No Backup No automatic deletion | 1TB10TB |
| SCRATCH | all temporary (large) files. Main storage for your jobs and experiments input and output files. | Lustre | Automatic deletion to be configured at a later stage No backup | 4TB50TB |
SCRATCHDIR | Big temporary data for an individual session or job, not as fast as TMPDIR but higher capacity. Files accessible from all cluster. | Lustre | Deleted at the end of session or job Created per session/ job as a subdirectory in SCRATCH | part of SCRATCH quota |
TMPDIR | Fast temporary data for an individual session or job, small files only. Local to every node. | SSD on shared nodes (*f QoSs) | Deleted at the end of session or job Created per session/ job | 3 GB per session/job by default. Customisable up to 40 GB with
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RAM on exclusive compute nodes (*p QoSs) | no limit (maximum memory of the node) |
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