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/storage/gpfs_*are dedicated to data storage. They are mounted on UI and worker nodes and readable or writable depending on the setting agreed with experiment. If the storage area is under the control of SRM (Storage Resource Manager), like StoRM, it is possible to write there only via SRM./opt/exp_softwareis dedicated to experiment software. They are mounted on UI and worker nodes. They can be written directly by user from UI or by software manager jobs through dedicated worker node depending on the setting agreed with experiment. This are must not be used to store data, as it is for software only.
N.B. This filesystem is not writable through normal job and standard worker node./home/*where there are user homes grouped by experiment. Quotas are set per experiment, therefore we recommend to delete as much as possible the unnecessary files.
N.B. The user home directories are present also on worker node but they are local and physically different from the user home on the UI./storage/gpfs_archiveis a buffer for the tape for several experiments. Some experiments has dedicated buffer. The tape is managed by Tivoli Storage Manager./cvmfs/EXPERIMENT_NAMEis another storage location based on the CernVM File System (CernVM-FS) (https://cernvm.cern.ch/portal/filesystem). It is managed centrally by the experiment and the mount point is available on all the CNAF UIs and WNs - more information can be provided by the experiment./home/EXPERIMENT_NAME/username/hosts the home directory for each user. It is available only on the bastion machine and on the UIs, NOT on the WNs. It is optimized for small files and should not be used to store experiments’ data. Daily backup is guaranteed.
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