Why are my files deleted from the SCRATCH before 30 days?

To detect non-accessed files (not read or modified) during 30 days, IDRIS takes into account the timestamp of the files. The timestamp is not always updated when new data is downloaded and the files can appear « older » than they are. This problem generally occurs when archives are used.

To avoid conserving the old timestamp during the decompression of your data, you can use the -m or -DD options of the tar and unzip commands, respectively:

tar -m [...]

or

unzip -DD [...]