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Please read the section Storage before reading this section.
When moving data to the shared folders, please follow these common sense rules:
scratchfolder to be always there. At the moment, however, there is no deletion policy for that.
Users of Mathematical Physics, as well as any other Lunarc user, can use their favorite tool to download and upload either from your own workstation, the Aurora front-end or the Aurora computing nodes. You can read about some of those tools on the Move data to and from the Iridium Cluster pages.
Users of these division can access the special node fs2-hep to be used for downloads or uploads.
These users (in particular Particle and Theorerical Physics) might need to download huge amount of data and therefore it was our objective to offload the Lunarc internal network and the usage of computing nodes as mere downloader nodes.
fs2-hep has a direct very fast connection to the internet for downloads and uploads.
NOTE incoming connections from the internet are rejected. This node can download FROM and upload TO the internet but cannot be accessed directly as a server to retrieve or upload data from OUTSIDE Lunarc. In other words, it is not possible to directly connect TO
fs2-hep from the internet via
rsync. You can only run those on
fs2-hep itself. Read more about this in Uploading/Downloading data to/from Aurora from your laptop or workstation.
An overview of the upload/download components are shown in the slide below: source: https://docs.google.com/presentation/d/1agBLlMrMe3Pu1RGou5ut5LE0dgzeXFGztKu4Gjn_QBE/edit?usp=sharing
/projects/hep/folders or your home folder. All other folders are not writeable by your user. Everything in
/tmpwill be deleted regularly.
/projects/hepfolders as a destination folder. Any other path is not writable by your user. The
/tmpfolder will be deleted regularly so you should not use that.
/projects/hep/fs2is accessible by everyone, while
/projects/hep/fs4is dedicated storage for the ATLAS project.
For small files (order of tens of gigabytes), small data rates (slow transfers) this can be done via Aurora frontend, you don't need to use
fs2-hep. For example, from your laptop:
''sftp myfile aurora.lunarc.lu.se:/projects/hep/fs2/shared/np/myfolder/myfile''
For big files (Hundreds of gigabytes up) you should use
fs2-hep. Aurora is not a storage facility, therefore is not meant to be accessed by external sources to do data movement. If you do this via the Aurora frontend it is extremely slow and will slow down your colleagues work. Also, Aurora frontend managers might interrupt your transfers if they see it is taking too much time. I strongly recommend to follow the instructions at Uploading/Downloading data to/from an external source from Aurora above instead, and eventually run an ssh/ftp server on your own laptop or workstation, or ask the sysadmin for a convenient form of online storage.
For resources that can be stored on the GRID, you should definitely stage them on the Lund GRID storage instead, a few ways described under Downloading/Uploading data to/from the GRID to Aurora, so that you can access them from all over the world in the fastest way possible.
Please read the dedicated page Moving data between GRID and Aurora