Page History
Policy by Folder
Red text indicates a change from the previous policy.
Space | Quota | Backup | Lifetime | Comment |
|---|---|---|---|---|
xtc | None | Tape archive | 4 months | Raw data |
usrdaq | None | Tape archive | 4 months | Raw data from users' DAQ systems |
hdf5 | None | Tape archive | 4 months | Data translated to HDF5 |
scratch | None | None | 4 months | Temporary data (lifetime not guaranteed) |
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results | 2TB | Tape backup | 2 years | Analysis results |
User home | 20GB | Disk + tape | Indefinite | User code |
Tape archive | None | Two copies | 10 years | Raw data |
...
- Eliminate the short and medium storage classes.
- Eliminate the /ftc folder.
- Data currently under ftc will be moved to scratch and the scratch policy will apply.
- Change the lifetime for raw and scratch data disks on disk to 4 months.
- After the initial 4 months period, the expiration status of a run is determined by the access pattern of its files.
- This will be enforced by the constant monitoring of the file systems to determine which files were accessed and when. We will be also tracking if the files were actually analyzed or just "touched" to dodge the policy.
- Analyzing the data extends the lifetime of the access data by 1 month from the access date.
- Data restored from tape will stay on disk for 1 month, i.e. it's treated as a file access.
- Rename the usr folder as usrdaq.
- Rename the res folder as results.
- Increase the quota of the results folder to 2TB.
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