Difference between revisions of "11. File systems and data structure at ECMWF - where to store and get data!"
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| + | Back to ECMWF overview[http://muspelheim.nilu.no/w/index.php/ECMWF] | ||
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| + | ''Updated by nik: 12 March 2013'' | ||
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- SCRATCH: Temporary data, removed regularly. Quota: 25 TB. | - SCRATCH: Temporary data, removed regularly. Quota: 25 TB. | ||
- SCRATCHDIR: Autodeled after end of job. | - SCRATCHDIR: Autodeled after end of job. | ||
| − | - PERM: Large | + | - PERM: Large permanent files, no backup. Quota: 26 GB. Accessible from ECgate as /c2a/perm |
The two systems use the same name convension - but different file systems. | The two systems use the same name convension - but different file systems. | ||
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'''On both ECgate and HPCF you can access 2 different archives.''' | '''On both ECgate and HPCF you can access 2 different archives.''' | ||
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| − | + | '''1) MARS (Meteorological Archival and Retrieval System)''' | |
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| + | which contains the meteorological forecast/analysis/re-analysis data in GRIB format, as well as observation data in BUFR format. | ||
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| + | '''2) ECFS (ECMWF File storage system):''' | ||
| − | This is a User Archive where you can store long-term data on tape. | + | This is a User Archive where you can store any long-term data on tape. |
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On ECFS you have two domains: | On ECFS you have two domains: | ||
- ec: Permanent domain where files are stored indefinitively. | - ec: Permanent domain where files are stored indefinitively. | ||
- ectmp: temporary domain where files are stored for 90 days after which they are automatically deleted (and cannot be recovered). | - ectmp: temporary domain where files are stored for 90 days after which they are automatically deleted (and cannot be recovered). | ||
| − | To store/access | + | To store/access files in ECFS you must issue explicit commands which are set-up to use a UNIX like interface. |
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Commands are same as for unix but starting with "e": | Commands are same as for unix but starting with "e": | ||
| − | els, ecd, ecat.. | + | |
| + | els, ecd, ecat, ecp, epwd, emv, echmod... | ||
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For a manual of the commands type "man els". | For a manual of the commands type "man els". | ||
| − | els lists your data under ec: | + | ''els'' lists your data under ec: |
| − | ls lists your data under $HOME | + | ''ls'' lists your data under $HOME (on ECgate or HPCF dependent on where you are logged in) |
Latest revision as of 13:43, 12 March 2013
Back to ECMWF overview[1]
Updated by nik: 12 March 2013
ECgate
is a Unix server (soon to be changed to a Linux server) where each user has directories:
- HOME: Small permanent files, daily backup/snapshot. Quota: 3.6 GB. To check quota: ecquota - SCRATCH: Temporary data, removed regularly. Quota: 100 GB - SCRATCHDIR: Files are autodeleted after end of job. Part of SCRATCH and quota.
HPCF
(High performance computing facility) is the supercomputer (c2a) where each user has directories:
- HOME: Small permanent files, daily backup/snapshot. Quota: 320 MB. To check quota: quota - SCRATCH: Temporary data, removed regularly. Quota: 25 TB. - SCRATCHDIR: Autodeled after end of job. - PERM: Large permanent files, no backup. Quota: 26 GB. Accessible from ECgate as /c2a/perm
The two systems use the same name convension - but different file systems.
On both ECgate and HPCF you can access 2 different archives.
1) MARS (Meteorological Archival and Retrieval System)
which contains the meteorological forecast/analysis/re-analysis data in GRIB format, as well as observation data in BUFR format.
2) ECFS (ECMWF File storage system):
This is a User Archive where you can store any long-term data on tape.
On ECFS you have two domains:
- ec: Permanent domain where files are stored indefinitively. - ectmp: temporary domain where files are stored for 90 days after which they are automatically deleted (and cannot be recovered).
To store/access files in ECFS you must issue explicit commands which are set-up to use a UNIX like interface.
Commands are same as for unix but starting with "e":
els, ecd, ecat, ecp, epwd, emv, echmod...
For a manual of the commands type "man els".
els lists your data under ec: ls lists your data under $HOME (on ECgate or HPCF dependent on where you are logged in)
