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File System | Suitable for ... | Technology | Features | Quota | ||||||||||
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| HOME | permanent files, e. g. profile, utilities, sources, libraries, etc. | NFS | It is backed up. Snapshots available Throttled I/O bandwidth (less performance) |
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| PERM | permanent files without the need for automated backups, smaller input files for serial or small processing, std output, etc. | NFS | No backup Snapshots will be available (not yet) Throttled I/O bandwidth (less performance) |
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| HPCPERM | permanent files without the need for automated backups, bigger input files for parallel model runs, climate files, etc. | Lustre | No Backup No snapshots No automatic deletion |
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| SCRATCH | all temporary (large) files. Main storage for your jobs and experiments input and output files. | Lustre | Automatic deletion after 30 days of last access to be configured at a later stage No snapshots No backup |
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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 (GPIL) 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 parallel compute nodes (*p QoSs) | no limit (maximum memory of the node) |
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| Tip | ||||
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When running on the shared GPIL nodes (*f QoSs), you may request a bigger space in the SSD-backed TMPDIR with the extra SBATCH option:
With <size> being a number up to 40 GB. If that is still not enough for you, you may point your TMPDIR to SCRATCHDIR:
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