Difference between revisions of "11. File systems and data structure at ECMWF - where to store and get data!"

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'''ECgate'''
 
'''ECgate'''
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(High performance computing facility) is the supercomputer (c2a) where each user has directories:
 
(High performance computing facility) is the supercomputer (c2a) where each user has directories:
 
   
 
   
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- HOME: Small permanent files, daily backup/snapshot. Quota: 320 MB. To check quota: quota
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- HOME: Small permanent files, daily backup/snapshot. Quota: 320 MB. To check quota: quota
 
  - 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.  
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  ''2) ECFS (ECMWF File storage system):
 
  ''2) ECFS (ECMWF File storage system):
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  This is a User Archive where you can store long-term data on tape. ''
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  On ECFS you have two domains:
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This is a User Archive where you can store long-term data on tape. ''
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  - ec: Permanent domain where files are stored indefinitively.
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On ECFS you have two domains:
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  - ectmp: temporary domain where files are stored for 90 days after which they are automatically deleted (and cannot be recovered).
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- 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 fiels in ECFS you must issue explicit commands which is set-up to use a UNIX like interface. Commands are same as for unix but starting with "e":
 
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  els, ecd, ecat..
 
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  For a manual of the commands type "man els".
 
  
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  els lists your data under ec:
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To store/access fiels in ECFS you must issue explicit commands which is set-up to use a UNIX like interface.
−
  ls lists your data under $HOME
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Commands are same as for unix but starting with "e":
 +
els, ecd, ecat..
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For a manual of the commands type "man els".
  
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  ECFS can be accessed both from ECgate and HPCF.
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els lists your data under ec:
 +
ls lists your data under $HOME

Revision as of 18:14, 11 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 paermanent 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 which contains the meteorological data.

2) ECFS (ECMWF File storage system):

This is a User Archive where you can store 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 fiels in ECFS you must issue explicit commands which is set-up to use a UNIX like interface. Commands are same as for unix but starting with "e": els, ecd, ecat.. For a manual of the commands type "man els". 

els lists your data under ec:
ls lists your data under $HOME
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