NMR CF Data Policy
Version 1.1, June 2019
A unique login name is assigned to every certified user of the facility under which the users should work. New users in training can only work under a supervision of certified users or CF staff.
The same logins apply to all computers of CF, namely the computers of the six spectrometers (500 MHz, 600 MHz, 700m MHz, 700b MHz, 850 MHz, and 950 MHz) and nmrcf computer which is available for further processing and data manipulation.
The users are provided with disk space (/d1/data) to store their data. The disc space is subject to quotas assigned to research groups (RG) of 50 GB or 100 GB on spectrometers or nmrcf, respectively. Besides that, every user has a small quota of 500 MB in their home directories (/home). These should be treated with caution. Filling the home quota may prevent the user from starting the TopSpin program necessary for measurement.
All the data obtained by the users in the CF are owned by the users and it is their responsibility to transfer and archive them. The CF staff’s responsibility for data measured by CF staff ends by transferring the data to the end user. The CF takes no responsibility for loss of data measured by non-staff users. The users are not allowed to view, copy or share other users’ data without prior consent of the data owner. The CF staff can handle other users’ data for the purpose of computer maintenance and backup. If necessary, the CF staff will remove old files to free the disk space, after a prior warning, or even without a warning in emergency if the data would prevent the use of the spectrometer or computer. No data will be intentionally lost in the process.
The computers in the NMR CF are not meant for permanent storage of the user data. The raw (ser files) and processed data should not be held for more than 1 month on the spectrometer computers and no longer that 6 months on the nmrcf computer. The directory /d1/www on nmrcf is accessible from the web without a password and can be used to share the data, for example with co-workers. The disc space is limited so it is not suitable for large files and the files should not be kept there for more than a week. The preferred way of sharing the data with external users is the Filesender service. For storing the data for longer time periods, the data storages offered by MU/CESNET can be used.
The nmr data, user homes, and the TopSpin directory on the spectrometers are synchronized with the backup disk every night, the old copies are overwritten. The nmr data and user homes on the nmrcf computer are stored on 2-disk RAID1/mirror, so the data synchronization is done in real time and the system works even if 1 of the disks fails.