Archiving personal data on "lagoon" server
The archive system is thought to be used for long-term storage of private data (e.g. home data). The archive system file space is not a working place, e.g. like a standard user home, where you operate on the files, create, read, write and delete them frequently. Instead the archive space should be used as a "quiet" location where you keep backup copies or data which is likekly not to be used for a longer period of time. A typical use of the archive system might be storing larger output data of scientific applications which is no more frequently used or modified after a certain deadline/ project end, but you think parts of the data may be reused one day in the future. If you need to work again on previously archived data, copy or move it back to your home (or whatever target it is). You must not use the archive system in any way that generates an avoidable, constant and high I/O load on the archive server over a longer period of time. Thus, besides moving/ copying data from or to the personal archive, you should not, for instance, configure applications to use your archive directory as data read source or write target, except for backup purposes. The data stored in your personal archive folder is truly private and cannot be shared with other users. Finally, note that the data in the archive folder will not be backed up itself, i.e. the data is well protected using redundancy against loss resulting from hardware failure, but if you accidentally delete a file yourself in the archive, it cannot be restored.
Obtaining access to the archive
The archive is not automatically accessible for every user. Instead, access must be obtained from ISG.EE (write an e-mail request to firstname.lastname@example.org). All D-ITET users are allowed to obtain an archive access (excluding students). The first 5 GB per user are free of cost.
How to access the archive
Once access has been granted by ISG.EE, you may access the archive in the ways shown below:
NFS (preferred on Linux): /itet-stor/USERNAME/lagoon_archive or /srv/beegfs01/archive/USERNAME
Samba or MS Windows Network Map: \\itet-stor\USERNAME\lagoon_archive or S:\lagoon_archive
Notes, read carefully
Please follow these rules when storing data in the lagoon archive:
- Summarize small files (e.g. only a few kB per file) in to larger archives (e.g. zip-archives, tarballs (.tar.gz) etc.)
- Do not store small files in the archive, especially avoid storing many (from thousands to millions) of such small files.
- Take care when you delete files. You are working on the backup system and there is no additional backup of that data.
- The quota applied to the files in the archive is shared among all users of the same laboratory. If one user consumes all the laboratory's available space, other users won't have enough space to add their own data to the archive. If you think the amount of data you plan to add to the archive is extraordinarily large, please contact your local administrator or ISG.EE support first.
Create new file tarball on the archive system:
tar cvfz /itet-stor/USERNAME/lagoon_archive/phd_thesis_files.tar.gz /phd/thesis/directory
Or use zip, if you like it:
zip -r /itet-stor/USERNAME/lagoon_archive/phd_thesis_file.zip /phd/thesis/directory
- It is no more necessary to split large archives (e.g. 50 GB+) into smaller chunks.